My husband has had flu symptoms since Thursday (going on 5 days now). Stared with severe neck, back and shoulder pain, high fever (104 at times), cold sweats, very sore throat and no appetite. He has been drinking lots of water, but not eating much food at all until yesterday. Sunday he started eating more, but now he has severe pain in his left testicle going down his leg and trouble emptying his bladder. He still has a fever, but not as high. Some body aches but not as bad as last few days and the cold sweats are not as severe but still there. Biggest problem now is extreme pain in his left testicle. Tried motrin 800mg and hot baths but nothing is working. What could this be. He does not have pain while urinating or any burning, just difficulty.