Thanks for all the responses and advice!
My husband's deployed (military) so with a 2 year old also running around, I haven't been able to do as much as I'd like. My mom is driving out to help though and should be here tomorrow so that should help with being able to pump more often. My daughter is going through all sorts of issues since that hospital stay was the longest we've been apart. It was a very long stressful day.
Since DS still isn't taking in very much liquid (only 2-4 tsp at a time from a syringe), I have to focus on getting liquid into him. We saw the doc today and he said if he only drinks juice/water/pedialyte/gatorade right now that's fine as long as I get some liquid into him. He said to worry about his milk intake later since dehydration is an issue right now. Of course, I'm going to keep offering the breast. Since he's eating food just not drinking anything, the doc wants me to give him foods with a high water content.
I talked to the LC on the phone today and if he doesn't start nursing in the next couple of days, she's going to loan me a pump from the hospital since I only have a hand pump. Since he only wants cold stuff, she also suggested putting a cold rag on my breast. That's going to be highly uncomfortable but definitely worth a try.
He woke up a few times last night and would start to root around, then would turn away and throw a big fit when I put my boob up to his mouth. Eventually, he did kind of nuzzle it though and fall asleep on it. So, that's some progress, right?
Anyway, once my mom's here I'm going to try taking a warm bath with him and I should be able to get more 1-1 time with him.