My 2 1/2 yo son had a cold last week, including a day of fever funny nose and cough. The rest of the family naturally caught it as well, but without the fever,we all seemed well on the way to recovery until last night my son became very cranky and started running a fever again. He doesn t have a funny nose or cough anymore, but started complaining of pain in his groin, though he can t articulate where. His right testicle seems more retracted than normal. Should I take him to the ER tonight, or wait to see if its still there in the morning and go to the pediatrician?