I guess sx means symptoms and hx means history.

Sounds like the ped neuro has some biases against concussion and the effect of sub-concussive impacts, especially 10K worth of sub-concussive impacts.

It sounds like she thinks this pattern is memorized and the memory got triggered by the 10K rather than a physiological result of the trauma of the 10K.

I agree that PCS is more likely. The question is how to find someone who understands concussions better.

Otherwise, what are you looking for besides a diagnosis of PCS?

Dealing with the symptoms is about all that can be done. Treat the head aches and modify behavior and environment for the rest.

What are her worst symptoms besides the head aches?