I have a 12 week old who has always been a really good feeder. But recently she's been getting into a state where I know she's hungry, but she gets furious and refuses the breast. It's not that she's impatient and can't wait for let-down, because she refuses to latch on at all, and just won't close her mouth around the breast when presented with it but cries instead. As soon as she does latch on the problem is solved, and she will then feed very vigorously (often with flouncy little noises, as though to say 'finally you got round to feeding me'!)
This doesn't happen at every feed, and overall she is still feeding well and producing lots of wet and pooey nappies, so I'm not worried about her health, but it's very stressful for both of us when she cries hysterically and rejects what I know is what she actually wants. I think it happens more when she's tired (but she won't go to sleep because she's also hungry). Often giving her a dummy helps - she will suck on that for a bit and calm down, and then I can whip it out and offer her the breast while she's a bit calmer. Feeding in a quiet environment doesn't appear to make any difference.
Is this some kind of developmental phase? Or a growth spurt (she isn't feeding more than normal as far as I've noticed)? Has anyone else had this with their baby?