I got a fibro diagnosis when I was 30...and had it for several years before that. Many of your sxs seem to be associated with fibro.
Keep a symptom journal with dates of onset & dissipation. Also keep a list of questions for your docs.
Make sure you are drinking enough water-muscle problems can be caused by dehydration.
Make sure you also get enough potassium daily.
Try to exercise, even if it's just a small walk, every day. With fibro and MS exercise is important.

It took me a few years to finally get an MS dx...I was told it was migraines (didn't have headaches), small fiber neuropathy, and other things.