i m 58 yr femaie, for several months running off & on fever 99.8 - 102, joints ache, chills like my bones are freezing = 80 degrees outside and I m freezing, muscle cramps where my feet and hands get stiff and I can t move them until they relax and the muscle spasm releases. It s just started the last 3 days happening in my neck muscles. My PCP doesn t know what to do, do you know who I should follow up with or what may be going on?