My baby was born 9/2 (9 weeks tomorrow!) and is now drinking 4oz every 2.5-3hrs (formula fed). She is sleeping about 7-8 hours at night. She usually spits up after feedings, except at night or when she is sleepy. It seems to be getting a bit worse over past week or so. She can also spit up even an hour or so after feeding. My pediatrician is not concerned & my baby is happy & spitting up doesn't seem to bother her. Anybody else with this issue?