Fibromyalgia question

Hello lovely people,

I am wondering if I may have fibromyalgia die to nasty upper body pain. My shoulder blades , shoulders and arms and I have weakness in my hands and left arm is weaker. I've had this pain for a few yrs and it feels like my shoulder blades are on fire. I am not sure if exercise actually does help but my upper body feels better after a total body or upper body workout. Is that all in my head? I've tried advil and that does nothing.

How does one go about getting a dx and does this even sound like fibromyalgia? Are there meds that can help ?

Thank you.