@lileitak: yes there is sleeping and feeding forum. Be aware, though. Some topics can be a bit controversial but the forum is always open for discussion. Some useful suggestions as well.
@AceOfBase: GI is related to gut and indigestion. DS is colic and has silent reflux. His reflux is under controlled but he is still very gassy. Gastroenterologist can't help us out but to tell us to start solid now. His experience has shown that symptoms like DS will settle down with solid. That says 5.5 months isn't early as compared to our case. However, we have just found a problem last week. He has severe tongue tied which wasn't diagnosed at birth. This explains a lot of the feeding problems that we had with breastfeeding and are having. He swallows a lot of air drinking. We will have problem to get him eat solid as well. He is too old to get it snipped at the doctor office so we have to wait until he is older to go under. Some say he doesn't need GA, some say i shouldn't get him fixed. I am still doing some readings.
Anyway, i won't trade him for anything.