I have had a headache, fever (up to 101.5) and severe muscle aches (not joint aches but muscle aches) on and off for about 2-3 days. The symptoms do respond somewhat to Tylenol, but then return. I now have almost no strength in my hands/fingers. For example, I was trying to carry a large cup filled with a beverage and ice and I had to hold it with 2 hands. Or another example is that I struggled getting my zipper up because I have little strength putting my fingers together. I have no cough, sneezing, runny nose, etc. Does this just sound like some kind of virus?