Hi, Lotus, and welcome! I'm glad you found us and joined the family!
Well, a lot does sound like fibro BUT many of fibro's symptoms are also symptoms of other illnesses that can be treated. You need a good doctor that treats fibro patients. They should run a battery of tests to rule out the other illnesses before a diagnosis of fibro is given.
Movement is good for fibro. Actually yoga is good for fibro, too. You do need gentle stretching and gentle exercises like walking and swimming because they do help a lot. With yoga, you will probably have to start out slowly again. Let your muscles get used to it. Pacing yourself is important so you don't end up in a flare. Here is some yoga flexibility ideas. You might already know about this but just in case I'll post a link.
https://www.msu.edu/~medyoga/flexibility_series.htm
Pain is a reality for fibromites. I know I'll be in pain. That's a given. BUT how much pain can depend on if I'm in a flare, if I have maintained control of my pain, if I have kept moving, and most importantly...my attitude towards this illness. I don't let it run over me like a steamroller. I face it head on and work around it to do the things I enjoy doing. If you enjoy yoga, maybe the above link will get you started again but...pace yourself. Start out slowly and gradually work into it. You might not be able to do everything you used to, but you can still enjoy yoga! Your body will tell you when it's had enough so really listen to it.
Be sure to check out Fibro 101. There are links to good info about fibro and you will learn a lot. There are links to What Else Could It Be, Symptoms, and also links to vitamin supplements and nutritional supplements that have helped some on the forum, including me.
Don't hesitate to ask questions. We are pretty good at answering them quickly. I hope to hear more from you soon.
Sherrine