My 3 month old breastfeeds with a nipple shield but she never seems satisfied. after about 15 minutes she'll start unlatching so I think she's full. But then she'll start eating her hand and crying. so I put her on the other breast and she won't stay latched. she has at least 4 wet and 2 dirty diapers a day and I still pump at least 10 oz in the morning so I don't know if its my supply? This only started about a week ago, she has been sucking my boobs very dry and I'm scared it may be supply!