L.H.
Hi there. I have a 5 1/2 month old son that has the exact same issues. I in fact did go on the Nutramigen, but that didn't exactly fix all the problems except the tummy irritability. In my opinion it was worth it because it would break my heart when his tummy hurt. My other son who is now 9 had the exact same issues. For the most part, a lot of it was simply coping with the spitting up for the first year, which i am doing with this one. The Zantac for this son actually makes it worse and the diapers he has after i give it to him were horrible. So i make the decision to stop that part. Starting him on solids has helped him out a lot. As for the runny nose and such, a lot of that can be contributed to teething and or possibly allergies. Is there anything about his routine that happens around these changes? I couldn't remember if you said he stayed home with you or not. You could start jotting a couple of things down that go on during the day when he has this happen, maybe you could pinpoint something in his schedule. Truly for my son , starting the solids really did help out a lot. Also, there are rare cases of people being diagnosed with reflux when they actually DO NOT PRODUCE enough acid in their bellies. So Zantac would do more harm than good. You could look in to that.
http://www.understanding-acidreflux.com/stomach-acid.php?...
Good luck! Hope that baby feels better soon!