my son is 1 week old. well I went to take his temperature with a forehead thermometer im his armpit just because I go it from my baby shower. well I it says he has q fever or 38.6c. he dosnt seem hot to me on his forehead. it's only his belly and chest that seem hot. suhould I take him to the hospital?? when I take his clothes off and wait like 20 minutes it goes back down I just keep checking it every 30 min it keeps going up and down. not sure why or when I should he worried. he's been eating ok. sleeping allot like most neefoens. please help me