And in my experience, bring up the subject yourself and then explain WHY you think it might be possible. That's a heck of a alot of the symptoms and it sounds like you've had most of the other stuff ruled out. Unfortunately, a fibro diagnosis is one of exclsuion...but it's even harder to diagnose than IBS as it all depends on how good a day you're having when you see the doc! I self-diahnosed my FMS...well, Heather suggested it! and I'm happy with that. My GP agrees with me, but she's useless and the specialist said it was "likely". Useful, huh?
Getting some help with your sleep would be a really good idea whether you get the Fibro diagnosis or not as that's often the main problem with Fibro - if you can sort the sleep you'll typically feel alot better.