I just gave birth on July 14th to my daughter and have a 3 year old 3 month son. I am nursing both of them and my milk came in a few days after the birth. My 3 year old has been having some minor stomach issues (vomited once and has felt like vomiting more and pooping a lot for him) that I do not think are virus related. Do you think it might have something to do with his belly readjusting to my milk coming in for the baby? Is this normal? He is nursing a decent amount....as in 5-15 minutes 3-6 times/day.