I think my daughter is having a bad reaction to milk. My DD will be a year old in a few days so her Dr said it was ok to start slowly introdution milk inher her diet. Every since I started giving it to her, she doesn't want to sleep. She won't go to sleep at night until 10 or 11 pm then is back up at 3-4 am screaming and really gassy. I burp her and she will burp another 3 to 4 times then will pass some more gas and just wants to be held which when she does that she has a belly ache. My mom, my sister, and myself can't have any whole milk because it makes us sick. I'm thinking she may be the same way, I have called her doctor and he said don't her any more milk for the weekend and see how she does and call back on monday. I have stopped giving her any milk other then her formula. She is still a little gassy she keeps burping here and there but not as bad.