I went in for the ultrasound last friday. Everything looked fine as well as all the tests coming back normal. The doctor wants me to stay on the acid refulx medicine, and let him know how I'm feeling in a week. Something must be working because I haven't been sick at all today, which doesn't really mean much, because tomorrow I'll probably feel yucky again.
Thanks everyone for all of your concern, hopefully we will have this all figured out soon, and we can move on with life.