I EBF and my 2 month old has mucus in his poop and screams only when farting. The doctor thought the screaming was due to an immature digestive system and a nurse thought he had a virus which was causing the mucus but now I'm thinking he might have allergies. His poop looks normal except for the mucus (orange, mustard seed appearance, no blood) Has anyone else had their baby go through this and it turned out to be allergies to something in particular? We have a doctors appointment coming up in a few days and I plan on questioning him further. I hate seeing him in pain.