Feeling very sick, is it Fibromyalgia flare or something else?

Sunday morning I woke up in the middle of the night and my legs hurt extremely bad. It wasn’t muscle pain it was more of a deep pain, like bone pain. I had prickly sensations and pins and needles feelings in the bottom of my feet. I felt horrible! I suffer from Fibro but it hasn’t really bothered me lately. I also have daily persistent headaches and chronic migraines. So then Sunday night I started vomiting thankfully that stopped. My legs still hurt so bad, all of my joints hurt, I’m nauseous, can’t eat and I just feel awful! I haven’t been running a fever. I’m not sure if it’s just a really bad Fibro flare or if I have a virus? My joints have been hurting for months and I’ve told my doctor but she doesn’t do anything. I’m already on Lyrica for the Fibro. Could this be the start of Rheumatoid Arthritis, but what would cause this horrible leg pain? And walking around makes the pain worse. I’m kinda waiting it out, hopefully it goes away soon, I feel the doctors wouldn’t be much help. Thanks for listening