You describe the cause as being amplified nerve sensory signals and I think inflammation causes the overamplification.

If you've had multiple concussions, even if the secondary impacts were minor, then the brain's ability to regulate inflammation becomes compromised and it pumps out too much inflammation in response to a given stressor. Inflammation is what causes the symptoms so that's why you experience increased sensitivities or intense symptoms following a head bump or over-exerting yourself.

Sure the impact force from the secondary impacts was not enough to do any damage, but it was enough to trigger an inflammation response and the resulting inflammation can do more damage and cause more symptoms than the initial impact. So calling it a panic attack or anxiety is ignorant and short-sighted.


Inflammation Seems to Underlie Concussion Symptoms