J., hello, first If I were you, just to make sure nothing else is wrong just bring it up to either your Dr or nurse.. Now as far as at night...you say she doesn't have much hair right?? Can you braid it at all?? If that is possible then it will help her not to pull it because she can't really twist it, it's like already twisted! I had to do that with a little girl I kept for 3 years! also if you can't braid it at all then find her some kind of little cap...make her think it's a night cap and put it on her, you can try it by itself or you can also make some braids out of yarn and attach to the cap that way she will have something to play with! I think it is just a habit that has gotten out of hand. she doesn't even realize she is doing it I bet you! but try making the braids and even in the day time you could make them attach to some kind of bow or anything so she can play with them and not her hair!!! Good Luck and keep me informed please on how she does...but I hope it works for you too. D.