I went to see an endocrinologist last week. I have been getting these attacks/flashes that leave me really week and cause burning in my muscles. So my PC decided that I should be checked for neuroendocrine cancer (Carcinoid). Having listened to my symptoms, the endocrinologist said that the differential diagnosis is either the Carcinoid, some thyroid tumor and some others.... but most likely my spells are caused by dis-autonomic condition such as vasovagal syncopy. I went to read about it and it looks like another condition doctors do not know anything about and do not know how to treat. It can explain malaise and fatigue, the weakness in my legs and may other things. I have had fainting spells since I was a kid, every time I had to stand for a while I would start blacking out. That is also considered one of the dis-autonomic conditions. Anyway, I was wondering how many of you have traveled this path. It just seems logical that if i have it, it probably comes with the territory and many of you must have it too. Still, I am a long way from knowing for sure, and finding an electrophysiologist in my area will not be easy. I tried to look and I have found one. What a choice!