I'm flying to the USA on Saturday to attend two weddings and I am so worried about being ill on the plane (plus I am terrified of flying-once the seatbelt signs are off my body goes into 'fight or flight' response and I feel like I'm having a 7 hour panic attack and about to die at any second which I know is irrational). The last few flights I've taken I've had worse pain and despite diazepam (did nothing at all) it's awful being stuck in a loo or worse, not being able to use the loo during turbulence, take off, or landing. I've had every single test, diet, treatment etc out there, including FODMAP (made me a lot worse) and Symprove (huge waste of money and gave me worst diarrhoea ever). I just take Fentanyl tablets for the pain now which is virtually constant and incapacitating. I've been having nightmares about flying for months and have got 2 Zopiclone 7.5mg tablets from my GP but I have no idea what effect they will have on me, if they will make me sleep or drowsy for hours that's fab,but if not it's too late to do anything about it once I'm in the air! Any advice welcome please. I've also tried hypnotherapy which again was a waste of money and didn't help at all.