Something Isn't Right!

I"m really starting to think Tristan might have reflux. His colic\gassiness really had improved over the past last few weeks. But we are dealing with an alarming (rather, distressing) amount of issues which finally lead me to doing some internet searching last night. I really think something isn't right. I don't know if its reflux, allergies, or what. I have been pretty sure that he doesn't tolerate dairy in my diet, so I have avoiding it. So I'm wondering if he has reflux or some other allergy type symptoms, or a combination of both? I hope the doctor can get to the bottom of it.

The most distress and tiring symptom we are dealing with is Tristan waking up screaming. He falls asleep pretty easy for naps and bedtime but is waking up a lot, especially during the day and its a very high pitch, deafening scream with no warning signals. He does this screaming at least once a night too where as before he really was only waking up to nurse (and he doesn't want to nurse during these crying episodes.) He also seems to be mostly asleep during these screaming fits. Tonight was hard. He kept waking up every 5 to 10 minutes after he fell asleep and I just now finally have him next to me sleeping in the swing. When he cries he also puts his arms up and leans back. He is also coming off the breast during feedings crying. This doesn't happen all the time, but often enough. I feel like lately I don't know what he wants. He acts hungry but then cries and screams at the breast. Its hard for me feeling like I can't "read" him.

He has had a variety of gas, screaming, fussiness at the breast since birth but we have always contributed it to  my over-active let down and over supply and to dairy in my diet. (Read this article to learn about colic in breastfeed babies.) But he has gotten a lot better at dealing with the flow of the milk and my body is finally calming down with the milk production, but now all of a sudden he is back to the screaming during feeds. Combine all of this screaming with spitting up, hiccups, wet burps... I'm just frustrated for him and myself.