grannylyn where are you going to once you get to Gatwick? Or are you holidaying in Gatwick?!
For me ... (and this is just me) what would be the point of going on holiday medicated up to the eyeballs? Or of course in a state of permanent anxiety...
I know there are people on here who will disagree with me, but can't you do an exercise where you talk yourself out of the anxiety, saying out loud "It is only anxiety, it will pass". I promise you over time the anxiety will diminish in intensity and/or you will reach the "Sod it, (insert whatever is causing the anxiety) bring it on" stage, because facing the fear is better than living with anxiety any day.
I'm obviously not talking about someone who has a proper phobia.
Also, I understand that for some people holidays cause anxiety but I disagree that it is always a stressful situation.