Hi, Lisa. Is that what you'd like to be called?
Well, I often am skeptical of the fibro diagnosis. Not because it isn't "real" but because there are no definitive tests for it and it can look and act like other things. Like Annie59 said, a Vitamin D deficiency is very common and can cause similar symptoms.
Also, many women who go through perimenopause or menopause can have symptoms that seem like fibro. Do you have a good gynecologist who can run some basic testing to see how your hormones are?
So, if I'm doing math right, you are 47? What is "normal" arthritis for that age, hmmmm?

If I were you, I would ask your primary doctor to run a Rheumatoid Factor test to make sure you don't have something else going on. I have two autoimmune diseases, MG and celiac disease. I've had MG since birth (52 years). The chance of MGers having another autoimmune disease is fairly high. Like celiac disease or lupus or rheumatoid arthritis. Or clotting disorders like antiphospholipid syndrome (APS).
What drugs are you on? Some drugs can deplete you of nutrients and cause all kinds of symptoms.
Do you notice any other symptoms besides the pain? Have you kept a journal of when the pain happens or if anything triggers it? Is it generalized or in some areas of the body more than others? Seriously, thinking about this stuff really helps define a problem.
I'm not saying you don't have fibro but don't blindly accept any diagnosis that does not come with "concrete" proof!
Annie