I find you credible.
What a long, frustrating trip you've been on!
My Dad was first diagnosed back in the early fifties or thereabouts. Back then, a diagnosis was "We think you probably have MS." They took it back, gave it back, said "Well, hmm, maybe it isn't MS since you aren't crippled yet", that kind of thing. It finally stuck, but it really messed with his sense of who he was.
I've read many posts from people in limbo who are almost defensive about their symptoms, perhaps because "outsiders" feel that symptoms are somehow less real without three definitive diagnoses from three different MS specialists...or something.
Anyway, NOW who's rambling...