I do know the feeling/stigma/guinea pig syndrome of being bounced from doctor to doctor, treatment to treatment without getting any concrete DX/answers.
Personally, I'd rather they tested you for
any other deficiencies, treat them all and get you "balanced" before putting you on Rxs, but I'm not you, nor feeling your symptoms.
IF these symptoms are truly stress-related, all that stress didn't just build up overnight, so I also wouldn't expect a day/week/whatever at the beach to resolve them either... just sayin'...
BTW & FWIW w/o agreeing/disagreeing on the cause, there are different kinds of "in your head" DXs. What they share in common is that the symptoms/pain are as real as organic causes.
Doc