I know this sounds crazy but I am just wondering if anyone has just started sweating profusely for no reason and then found that they have a low grade fever? This has happened twice in the past month, and then within an hour, my temp goes back to normal, its really starting to freak me out, especially this week I have had muscle tightness in chest,shoulders, neck and back, the shakes, heart racing and horrible headaches that nothing takes them away but sleep. If anyone knows anything about this, please let me know!!