HGi Ern and welcome to this very helpful site.
I have flown since my SAH and was fine, I did use those funny little blue earplugs though to help with pressure changes, I think they are called earplanes, they did work but I looked a bit strange
I also have had trouble adjusting to the person I am now, and am no longer working, I found meditation helped me, probably similar to the stuff you do in yoga.
Vivien x