Do you just feel paralysed gripped with gear and not wanting to move when on an aircraft and is being sat in the chair the least worrying option ?
I am nervous at take off, irritated for the next 20 minutes and then fine. Once the seatbelt sign is off I will spend as much time as possible out of the seat unless the flight is half empty.
I also spend a bit of time in the loo with my e-cigarette.