I will be travelling from SFO->LHR->BCN in June and I wear an insulin pump so I figure I'll be subject to the TSA grope, but heres the issue, when I get nervous, upset, creeped out etc I have a tendancy to throw up

. This usually happens without warning, so what do you think TSA will do to me if during this happens? Am I subject to a visit to the "room"? Should I give them advance warning?
I realize some may find this amusing, but I'm really concerned about how I will be treated if this happens, not to mention a bit mortified and embarrassed over the orderal.