 [ Symptoms ] son bouts of nausea and vomiting that lasted two days extremely thristy and has lost his appetitie last for two weeks my son is 14 he has had bouts of nausea and vomiting that last for two days then afterwards he is extremely thristy and has lost his appetite thgis last for two weeks at a time this has been occuring for over 6 months he is always tired and falls asleep in the car during the ride to school and back he has had blood work for diabetes and celiac disease and lyme they were all negative [ Disease ] hi in my opinion metformin and bydureon can cause sever reflux drink alot of water avoid and dark color drinks coffee soda  drink low fat milk avoid acidic fruits and juice  orange and lemon  2 pills of zantac can fix the problem  taken when needed good luck