Hi Becky .....
WOW, you are unique in many ways ...... some great (a pilot, a sign language interpreter, a grandma, etc. etc.) and some not so great (two brain surgeries!).
Yes, I can identify with the hyperacusis (abnormal sensitivity to normal sounds). I carry my musicians' plug (for my good ear) in my purse at all times ..... mostly use in loud restaurants, movie theaters, concerts, etc. Sadly, this has not changed for me (at least at three years out). My plug was custom ordered/fit by my audiologist. It has a filter in it that currently has the medium (of 3) sound protection, while still allowing some frequencies to come through. I have toyed with the idea of getting the strongest one put in, but decided to wait until I see where my new journey of regrowth is taking me.
You sound like an amazing woman. You are just going through some proverbial "bumps in the road" (albeit big bumps!) of life.
Many thoughts and prayers. Clarice