I'm breastfeeding my 6 week old son. I have had issues with supply and I've had to supplement with pumped milk and occasional formula. (Yes, I'm working with an LC, I express often, and I've had my thyroid checked, etc.). I've noticed that over the last week my son is VERY fussy at my breast. He pulls away often, cries on and off, and seems generally unhappy. I've also noticed that he passes gas (farts) A LOT when on my breast. Is this strange? When I pump my milk and give him the bottle, I don't have the same issue. I really want to keep our nursing relationship going, but I'm finding it much easier to pump and give it to him. What could be going on??