Why Does Pain Flare During Recovery?
There are few things more discouraging than having a really good week and then waking up in pain again.
You were doing better. Maybe you exercised without thinking about it, sat through dinner without constantly adjusting your position, or went an entire afternoon without checking the symptom. You finally started thinking, Oh my gosh. Maybe this is actually working.
Then you flare.
And suddenly the good week doesn’t feel like evidence anymore. The flare does.
I knew it wasn’t gone.
I must have overdone it.
What did I do wrong?
Am I back at the beginning?
If you’re working with neuroplastic pain, I think understanding flares before they happen is incredibly important. Because a flare doesn’t necessarily mean you’ve reinjured yourself, lost all of your progress, or somehow failed at recovery. Sometimes it simply means your brain hasn’t completely finished learning yet.
Recovery is rarely linear
I wish recovery looked like this: symptoms start at a ten, then become a nine, then an eight, and continue politely marching downward until they reach zero and never bother you again. That would be lovely.
Brains, unfortunately, did not consult us when designing the process.
If pain has become associated with certain movements, sensations, situations, or other cues, recovery involves learning new associations. The old learning doesn’t necessarily vanish the moment you have one safe experience. You’re building new learning that can compete with what your brain previously learned about danger.
This isn’t just a PRT idea. Research on fear and exposure learning has long shown that extinguishing a learned fear response doesn’t necessarily erase the original association. Fear can sometimes return after time has passed, when the context changes, or after an unexpected unpleasant experience. Pain researchers have observed similar return-of-fear and avoidance effects and have been studying how exposure-based approaches can make new safety learning more durable.
I think of it like creating a new path through the woods. The old path is well worn because you’ve walked it hundreds of times. The new one may eventually become the path you automatically take, but walking it three times doesn’t make the old trail disappear.
So maybe you’ve been sitting without pain for two weeks and your brain is starting to learn, Sitting is safe. Then you have a stressful day, you’re exhausted, you sit in a different chair, or you feel one unexpected twinge. Suddenly the old sitting = danger pathway becomes very easy to find again.
That doesn’t mean the new learning is gone.
It means there’s still an old path.
The flare itself can become more important than whatever triggered it
When a flare happens, we naturally want to know why.
Was it the workout? Did I sit too long? Was it because I slept badly? Maybe it was stress. Did I eat something different? I knew I shouldn’t have lifted that.
Sometimes there is a useful answer. You may genuinely have overworked a muscle, gotten sick, slept terribly, or done something your body wasn’t accustomed to doing. Having neuroplastic pain does not make you immune to ordinary aches, injuries, or illness.
But sometimes there isn’t a satisfying answer, and the search for one becomes part of the problem.
Imagine you wake up with more pain after three really good weeks. Within ten minutes, you’ve mentally reviewed yesterday, checked the pain six times, tested a movement to see whether it still hurts, and started worrying that you’re back at square one. From your brain’s perspective, this sensation just became extremely important.
That’s why I often care less about having the perfect explanation for why the flare started and more about what happens next.
Can we respond without turning it into an emergency?
That doesn’t mean pretending you enjoy it. You can be disappointed. You can be frustrated. You can even have the thought, I thought I was past this.
But maybe alongside that thought there can be another one: I’ve had good days. My brain has already shown me that this can change. One flare doesn’t erase that. This is a part of the process.
This is where an Evidence List becomes particularly useful. The flare is loud. It is happening right now. The three good weeks are quieter because they’re already over. Writing down the changes you’ve seen along the way helps prevent one bad day from rewriting the entire story of your recovery.
Sometimes things get louder before they get quieter
There’s a concept in behavioral psychology called an extinction burst. When a behavior that used to reliably get a certain result stops working, the behavior can temporarily become more intense before it fades. If you’ve ever watched a toddler ask for something, get told no, and then suddenly ask seventeen more times at increasing volume, you’ve basically watched the idea play out in real time.
I sometimes use a slightly more dramatic visual with clients. Imagine two sides in a battle, and one side is starting to lose. Instead of quietly packing up and going home, they go all out. They start firing everything they have left. Use the rest of the ammo! We’re going down swinging! For a little while, it can actually look like they’re getting stronger. But that burst of activity doesn’t necessarily mean they’re winning. It may be happening precisely because the old strategy is no longer working the way it used to.
I think this can be a helpful way to think about some symptom flares during recovery. Your brain has spent a long time pairing certain sensations, movements, situations, or activities with danger. Now you’re responding differently. Maybe you’re walking without bracing, noticing a sensation without immediately checking it, or going about your day instead of dropping everything to figure out what the pain means. The old danger response may still show up—and sometimes it may show up loudly. That doesn’t automatically mean something has gone wrong or that all of your new learning has disappeared.
I wouldn’t use an extinction burst to explain away every flare, though. Pain can fluctuate for all kinds of reasons, and a new or concerning change in symptoms still deserves appropriate medical attention. But when a familiar symptom pattern suddenly gets louder in the middle of otherwise meaningful progress, I don’t think we have to immediately interpret that as, Well, I guess none of this was working after all. Sometimes the losing side is just making a lot of noise.
A flare can actually become part of the learning
I know this sounds a little unfair. Nobody wants to hear, Congratulations! More pain! What a wonderful learning opportunity!
But a flare gives the brain an experience it couldn’t have while you were symptom-free: What happens when the sensation comes back?
If every return of pain immediately sends you back into fear, checking, avoidance, and the belief that your body must be damaged, the brain gets a very familiar message.
But what if this time is different?
Maybe the pain comes back and you recognize it. Oh, I know this. You don’t cancel everything you had planned. You don’t spend the evening researching. You use somatic tracking if it feels helpful, or maybe you decide the safest thing is actually to stop paying attention to the symptom and go on with your day. You remind yourself of the evidence you’ve gathered and let the flare be annoying without allowing it to become catastrophic.
That experience can teach the brain something too.
Research on pain-related fear is one reason I don’t think the goal of recovery should be creating a perfectly controlled life where nothing ever triggers symptoms. Safety learning tends to be stronger when it can be retrieved across different situations rather than existing only under one perfect set of conditions. Real life gives us different chairs, stressful weeks, bad nights of sleep, travel, illnesses, arguments, workouts, hormones, and approximately four million other variables we cannot completely control.
Recovery has to be able to live there too.
This is also why I don’t love obsessively measuring recovery by whether you had pain today. Sometimes a much more meaningful sign of progress is that you had pain and reacted differently to it. The symptom may have flared, but you weren’t as afraid. You recovered from the flare faster. You didn’t stop moving. You didn’t spend three days trying to figure out what you did wrong.
That’s progress too. Really important progress.
Of course, a flare shouldn’t automatically be dismissed as neuroplastic. A genuinely new symptom, a new injury, a significant change in symptoms, or something medically concerning deserves appropriate evaluation. The point isn’t to ignore your body. It’s to avoid assuming that every familiar flare means you’ve damaged it again.
So if you’ve been recovering and suddenly have a bad day—or a bad week—I wouldn’t ask only, Why is my pain back?
I’d also ask: What does everything that happened before this flare tell me?
The good days still count.
If you’re currently dealing with a flare and finding yourself pulled back into fear, How Do I Know If My Symptoms Are Neuroplastic? goes deeper into gathering evidence from your own symptom pattern. If you’d like support applying PRT to your own recovery, I also offer free 15-minute connect calls.
