My 15 week old pup threw up this morning (1/20/19) and I’m wondering if there’s any signs other then not eating or drinking I should look for. I took him to the vet yesterday (1/19/19) because he woke me up at 230 am with a weird hack or cough followed by a gag almost like something was in his throat. The vet said he looks fine and if it gets worse I could bring him back for antibiotics. He’s eating and drinking normally and seemed to have plenty of energy before he threw up.