My son was diagnosed with Flu B on 2/3. He went in for a follow up on 2/8 and appeared to have strep based on what appeared to be puss on the back of his throat. The rapid test was negative, cultures have now been found to be negative as well. He is 2lbs down, no appetite, not really drinking either. He sleeps in excess of 15 hours a day when given the opportunity. He complains of feelings like his throat is burning and having vomit in his neck . Very concerned. He is also on the spectrum.