I've had an under active thyroid and poor adrenal function for a couple of years now. The last 6 months my adrenals have been a lot better and I've generally managed to avoid the horrible crash cycle. However, I've come away on holiday and didn't sleep a wink last night, which is one of my main crash symptoms, accompanied by overwhelming fatigue the next day. I came away the same time last year and was in an awful crash the whole holiday. I was well prepared so there was no stress beforehand, but am so disappointed that this seems to be happening again after quite a while of feeling pretty good. Has anyone had anything similar?