K.S.
It could be fibromyalgia, or you could have gotten bitten by a tic while out of state. you may want to go to the Fibromyalgia site and read I think they also have a test there. I have a virus that is in my muscles and joints kinda like Epstein Barr my doctor said it could stay in my system at least 3 months. It was diagnoised through a blood test besides my pain.
Hope you get relief soon. My doctor gave me anti-inflamatories and vicodin for pain. Hope you ache less soon.
K.