Hi Ben,
I am not discounting that CTE is a real problem, and that athletes and others can be impacted.

But ask yourself if perhaps you are trying to find reasons to worry?

You seem to be going round in circles, where, even after you give encouraging advice about dealing with concussion anxiety, and get even more encouraging advice in return, you are back to being worried.
Members have been trying to reassure you in thread after thread, and there are only so many ways they can keep trying, especially as they are dealing with their own PCS issues.

It seems clear that Concussion Anxiety is a real phenomenon.
But the answer is not to keep feeding the anxiety, rather to find ways to calm it.

For anyone seeking a place to find support and ways to cope with anxiety,PTSD, OCD etc our Psych Central Forums may be helpful Forums at Psych Central