Hi,
My bb drinks about 5-6 times - est 7am, 10, 1, 4, 7 and 1.30am. Her day feeds could be either 3 or 4 hours stretch, so either 4 of 5 times in the day, and once in the middle of the night.
My girl drinks Similac. Initially, her breathing was very noisy but now, she's ok. No coughs...