My daughter is 5 weeks old, and in the last few days she seems to only want to feed every 3 hours and sometimes 4. Is that OK? She does have wet and poopy diapers after every feeding and was gaining 1 oz a day at her 1-month checkup. Also, I've read that the baby should get 15 to 20 minutes on each breast. But at some feedings, she'll only give me 8 minutes of vigorous sucking/swallowing on one breast before she comes off, and then maybe 5 minutes on the other. If I try relatching her, she'll scream bloody murder, so I assume she is full, but I don't really know.