A.M.
I have a 13 month old. At around 11 months he started vomiting at night. Sometimes it was within a couple of hours of him going to sleep. I took him to the doctor and his pediatrician suggested reflux, which my husband and I thought was strange for it to start at this age. We started Zantac. He did stop vomiting, but still woke upset, which bothered us. At his 12 month appt., we discussed again and the doctor suggested Prevacid, which was a tablet he chewed once a day. That very night, he slept 11 hrs straight, the way he used to. He has ever since. Just a thought. Good luck!