For the last couple of days, when C (almost 7 weeks) is nursing, after maybe 10 minutes or so on a side she starts crying this high pitched sort of frantic cry and pulls off the breast, all pissed. I burp her (usually do get a big one) then she'll eat again but not for long. I'll switch sides, she eats like she is starving, then pulls the same thing and won't settle. I burp again but nothing seems to settle her, but she still seems hungry and remains cranky until I feed her again in a little while.

I don't know what's up! It's not usual for her. She's usually a slow, long nurser, but I know she is getting faster as she gets older. But why won't she finish, and why the high pitched freak out? It's also not every time, but maybe half of times she nurses. She's otherwise fine, happy, sleeping well, so I can't imagine it's a food intolerance. Maybe she is getting pissed that the flow is slowing down but this is new in the last few days. Help?