Righty-o, have now read the thread.
Absolutely the relationship between IBS, the cold hands and feet, and all that, sounds like fibro to me. The absence of pressure points is a bit tricky since that's basically the only differentiating characteristic between fibro and similar illnesses, but essentially since there's nack all they can do about it, the exact label may not be much help anyway.
Indith, I actually didn't know about the link between fibro and resistance to painkillers. My dh can literally take a dose of stuff which would kill a normal person, and has kicked both methadone and morphine in a week (not the same week!) with virtually no ill effects. Essentially it wasn't that he was dependent and tolerising the painkillers, his body was somehow ignoring them completely.
I assume you've read the threads so I won't repeat everything that's in there. There is a good book which I don't think I've mentioned before, I haven't actually finished reading it (despite buying it about 2 years ago!) called The Fibromyalgia Handbook - one of the things he is v keen on is heat therapy, whether that's in the shower, steam room, applying hot water bottles to joints, whatever. Definitely worth a try.
Also, have I mentioned the salts before? Dh feels better after a salt water bath, but there are also some allegedly special salts you can get, this wasn't what I was looking for but is a useful source of info.
Finally, have I mentioned the hilariously-named Blair Lamb before? (Think 'Silence of the Blair Lamb Project' as the title of a spoof movie) worth a look .