i get it, so i know were your comming from. i get it regulerly and it was at its worst when i worked shifts and had depression.

i found it came on mostly if there was someone next to me i was not used to...allways fun with my new partner at the time, when i was in a new place...including staying at other people houses...people i knew and had stayed at regulerly and when im tired.

i have found the best way to prevent it and i know this is rather silly but taking short naps in the day works well and going to sleep as soon as i feel tired...when i was on shifts i found it good to try and go to bed at a reguler time as much as i could with a book and man to cuddle up to untill alseep.

i suppose this is not much help cos its each to there own but trying get off to sleep before you become exuseted is the best medicen and having a lay in sometimes alows the mind to catch up a bit.

sorry cant be more help. i sympathys with you i realy do. its awful to have