My newborn is 7wo and I went back to work last week. Almost every day that he is with my grandmother he is extremely gassy and cries excessively then has explosive poops. He is gaining weight normally (7 to 10 lbs in first month) and has a normal number of wet diapers. He does not go through these episodes at night or over the weekends when I exclusively breastfeed, only during the day. So my thoughts are: either it is the milk or the bottle.
I am sort of block feeding because he went down to only eating off of one side for about 10-15 minutes at 4 weeks. I offered the other breast and he would be done. I still always offer the other side and sometimes he takes it and other times he doesn't. I am pumping both breasts two times at work. In one pump session I am getting about 5oz between both breasts, which is what he needs for one feeding. I combine them into one 5 oz bottle. I don't know if combining them is causing gas because he's only used to nursing on one side, or if this should not effect him.
I noticed that when my milk seperates it only has a small layer of fatty milk so, I question whether this is the problem? Or am I analyzing it to much and may be just the bottles. I am using the Tommee Tippee bottles. It's just extremely frustrating because of how awful his gas is during the day!!