Hi ya
I couldnāt get valium form my doctor, I think they are more reluctant in the UK to prescribe Valium than in other countries, but I couldnāt have taken them anyway really as flying by myself, i would have felt too vulnerable
I was in a stable place when flying and I guess you need to know youāre own triggers, but for me:
Plenty of sleep in the run up to the flight (days before)
Getting everything organised well in advance so no stress on the day
Trying to keep my head still when taking off and landing (when I moved around, even just looking out of the window at these times, I could feel the spinning start)
Keeping my ears covered (headphones or earplugs) donāt know if it made any real difference.
Silly one but I didnāt let myself go to sleep, I know this is the opposite to everybody elseās advice, but I am at my worst if I am awoken suddenly, and I knew turbulance, seatbelt sign beep, announcement, would jar me awake.
I had a couple of drinks, as I was flying business class and intended to enjoy it, but not many, and drank gallons of water.
Biggest thing though was trying to stay relaxed, even in the airports going through security etc, the waiting usually gets me worked up, I had to make a concious effort not to let it wind me up.
I felt ok when I was there, it has hit me worst after i got back, I think coupled with a bit of jet lag. I had break through episodes for about a week after.
Good luck with your flight, let me know how you get on!