Lauriel, don't ever give up! When my daughter was around 25 she started having vomiting issues. She would be fine and then, all of a sudden, have to vomit. She was losing weight and was 97 pounds at 5'6" tall! The bones were sticking out in her arms, she was so emaciated.
She went to her doctor, many times, who didn't think anything was wrong since nothing showed on tests. I sent her to a gastroenterologist, she went through all the GI testing, and that idiot told her it was in her head! She came home in tears not knowing where else to go. I think they thought she was bulimic. I knew she wasn't because I checked!
I told her that we tried all doctors except the gynocologist. She went and it was endometriosis that was causing the problem! Who would have thought that?!!! She had outpatient surgery, was put on birth control pills and is fine now and has put on about 20 pounds. She looks wonderful.
So, don't give up. Someone out there has some answers. Make sure the rheumatologist you are seeing believes in fibromyalgia, too. Many still don't and she could have that too. But, the rheumy is probably your best bet. I'll be praying he/she is a good one. If you don't get the answer there, see another one. This isn't in her head.
Sherrine