Symptoms of an 18 year old male seem to be flu like: headache, sore throat, aching everywhere, feels light headed like he will pass out but doesn t, but the weird symptom is that he woke with a rash and redness on the first (largest) knuckles of each hand. He has had a fever ranging from 99.5 to 102.4 and it comes and goes. Any idea if this is something to be concerned about. Also his neck and back are aching, but so are his hips and most joints.