hello, my daughter is 14 months ever since she was 11 months she started to do a humping motion on specifically her bottles, most of the time when she is tired and I know it's normal for children her age but this time she wouldn't take the correcting she just went right back to it and this time she was making grunting noises and continued for almost an hr non stop. when we finally yelled at her she turned and screamed and just continued... I guess my questions are is she humping? if so how to effectivly correct her?