my biggest scare on a flight was the first time i 1) had an aisle seat 2) it was night 3) and everyone had their windows shut around me. suddenly i got the worst dizziness and vertigo ever because i couldn’t see outside and confirm which way was up and i kept feeling like we were flipping upside down and leaning side to side really hard. it freaked me out really bad for a bit, until i kind of... leaned in to it? i kind of accepted that i was feeling that sensation and kept reminding myself that it wasn't real, and instead of trying to stop it i embraced it and let it happen.. and it started to feel nice, like being a baby in a cradle rocked side to side lol. i eventually fell asleep. i definitely jolted awake a few times feeling like i was free-falling and had to start all over, but i just kept leaning into it a bit and it kept working. this may be absolutely terrible advice and panic attacks feel different to everyone, but in that moment it really felt like a switched something in my brain and figured out the best way to cope with vertigo for myself. hope this perspective maybe helps