Hi BumBum! I'm so sorry you are having to deal with this.....sleep problems are no fun at all! I've had sleep problems for years. I have cfs & fibro and sleep problems can definitely be associated with either of them. I was also dx'd with sleep apnea this year from a sleep split-study so that's just another big contributor to my problem. I have a cpap machine for that but it alone does not relieve the sleep problems. Ambien has worked for a while as well as amitryptyline but it seems to be getting progressively less and less effective as time passes and it may be time to try something else like Ambien CR or Lunesta.
Anyway, you just hang in there! Sleep problems can be difficult animals to identify and treat and it may take a little while.
Gentlest of hugs,