That's interesting. I've just found that I need to keep caffeine on the low side. I know that giving it up completely normally gives you a hell of a headache and I don't want to go there at the moment!!

Since I've had this I have CRAVED stimulants full stop - sugar, caffeine...

You mention glucose as well. Have noticed that my symptoms get much worse just before mealtimes and I think it might be related to glucose falling. This is usually in the evening and I often feel better once I've eaten.