big ((hugs)).
As far as crying at the breast - my DD2 did that...they start to associate feeding w/pain. So we had to take it very slow. Once they start feeling better it gets easier. For now try to feed her at incline, I would even almost have DD2 sitting up, and also feed for a little, try to burp, speak calmly, etc. It actually helped us quite a bit.
As far as laying them down and crying - yes, my DD2 did this as well, and especially if they have reflux it will be painful for them to lie flat. You can elevate the mattress so that she is at an incline, that should help - I actually started DD2 tummy sleeping - but that is a very controversial decison...I got the OK from our ped GI dr.
I would not do deli meats, even if they are soy free they may/probably have caseins (milk derivative) in them, and also you can never be sure the slicer is completely clean unless it's in your own home. I would just make a beef roast, or turkey or chicken roast and slice myself. Yes - good catch on the margarines, many (most have soy or milk in it).
For now I would leave the terriaki sauce alone.
I'm sorry she woke up screaming this morning
DD2 would do that too - the abdominal cramping and passing stools can be very very painful. Honestly, I threw EASY out the window during this time and did whatever she needed. Alot of comfort nursing and snoozing together in our rocker, and lots of times the only way she would go to sleep, or back to sleep was in bed with me. I went with it because I needed to get sleep, our whole family did. We eventually got back to EASY once she was feeling better it just took a few days of being consistent again.
Big big (((hugs)))). It is so worrisome when they are hurting.
I'm so sorry you are not hearing back from your dr - I hope you hear back very soon. Keep coming here, and we'll help as much as we can.