gratulations, your state of the concussion address is longer as Obamas State of the Union adress..., this was an interesting read.
First, do not sign as a cabin leader of a sizzling summer's end weekend . You really want to avoid any more head bumping for at least another year or two.

You seemed to be on your way of recovery somatically, the fact that your headaches can be controlled with meds is a very good sign. I bet that you cognitive functions will improve next.
The emotional aspects of PCS are in many cases the last to leave.

Given your age I bet that you will recover in most part, but you will be always at an increased risk to re injure your self. This fact alone is a sort of disability you need to become aware of.

It took me more than three years to recover from my second last concussion and I had a very long history of concussions over more than three decades.

A friendly hug