Hi. My son (13m) has been vomiting pretty much every day for two-three weeks. He looks like he's lost weight, seems dehydrated, and I'm at a loss at what to do. First time I took him to the doctors, we were told it was tonsillitis. Took a round of antibiotics and tonsils still swollen, still being sick every night. Second round of antibiotics are almost finished and he's still being sick every night. Doctors are just telling me it's normal but I'm really concerned. Would you go back? Surely it should be better now after two rounds of antibiotics??