hello! I was just wondering if anyone could gimme any idea of what this could be? My son is just over a month old and is gaining great weight. He's 12 lbs and eats every 3 to 4 hours now. Sometimes every 2 depending on how he ate the time before. He is very very gassy but it doesn't seem to bother him much. I feed him for about 5 min on one side and when he pulls away I burp and change him and then feed again on the other side for a few minutes. usually his poo is the normal yellow, mushy stuff but the last couple weeks I've noticed more and more that it'll be extremely watery/runny to the point the diaper doesn't absorb it totally and it'll run off the diaper when I change him. and occasionally he'll get green, mucousy stringy pieces in his poo as well. here's a picture from this morning. also my significant other is lactose intolerant but I'm not sure that that would affect my baby with breast milk.