What's her diet like? Something is wrong. If you don't have her on a good diet, then get her on one immediately. No more sugar, no more junk, no more artificial crap. That can cause a lot of havoc on a tiny, growing body that has yet to develop a solid immune system. If her diet is very good, then take her to the doctor and find out why she cries all the time. There is something seriously wrong and if she can't tell you what that it, then find someone who can.