DD3 has a new trick it seems.

Whilst feeding she pushes into my boob with her fist and pulls back on the nipple at the same time. The whole feed. It doesn't particularly hurt but it doesn't feel very nice either...lol

Is it normal or is she trying to tell me that I've got no milk or something? I wouldn't worry if she only did it the last few minutes of the feed (feeds are pretty short anyway) but doing it the whole feed?