I have had a very successful breastfeeding experience until a couple of weeks ago. My daughter will be 4 months old this week. Lately, she cries and smashes her face into my breast, she'll suck 3 or 4 times and then cry over and over again. I know she's getting milk, I see it on her face.
But, when she wakes up usually about 3:30am, she will breastfeed just fine. Same thing in the morning when she is not quite awake yet, I'll sneak in a feeding and she will accept the breast just fine. If I try to feed her when she's fullly awake, she protests.
I continue to pump so that I'm staying on schedule.