Find out the diseases of your family, both sides, especially for Autoimmune diseases, they may include Psoriatic Arthritis, Psoriasis, Lupus, Rheumatoid Arthritis, Raynaud's, Sjogren's, Mixed connective tissue disease, Addison's, Scleoderma, Ulcerative Colotis, Diabetes...there are many others easily found on a 'google search'.
Inform your Primary Care Physician, and your Rheumatologist, as well as any other Physican including those of hospital or ER of this family history.
There is a genetic link to these diseases, which means it is passed down, some Doctors already consider FMS to be Autoimmune, and others are ready to follow suit, but it may be even more serious.
Even with a HLA-B27 test, it may not show up as positive, BUT you may still have one, so knowing what your parents and grandparents, aunt, uncles suffer is key.
If you do not understand something LOOK IT UP, ask questions, keep an on-going list of your symptoms, problems, reactions to medicines, take it to the Doctors every time.
You have to be in charge of your own destiny, do not allow undiagnosed disease go on for the estimated seven years of diagnostic testing before you can get the needed treatment to stop the damage these diseases can do.
This is not meant as a means of self diagnosis, it is not meant to terrify you, and I am not claiming to be a medical professional. My Psoriatic arthritis (spondylitis type), Raynaud's, Sjogrens, Disc and facet disease, spinal stenosis took seven years to diagnosis, in the mean time more and more joint damage occured, once damage is done, it is irreversible!!!