I am worried because my 3 month old has been refusing to feed. He is just pushing the bottle away with his hand and pushing it out of his mouth and screaming. He was fine up until last week. I thought the teats on the bottles were too small for him so I changed them, but that has made no difference. He has only had about 8 floz in nearly 24 hours because of this. I can't see anything else that ould be wrong with him. Does anyone have any advice? This is the first time I have sent a message so not sure if this is right topic category.