A.,
I have been down the reflux road 3 times. Each of my sons had it worse than the one before. Have you checked out infantreflux.org? I thought it was a really helpful site with a great message board. I would be happy to answer any questions and share my expereinces if you want to email me.
My boys all slept in bouncy seats, swings, and carriers for months, and it took awhile for them to get comfortable with their sleeping. Lots of moms with reflux babies notice that when their babies go through growth spruts the sleep habits change a little. We changed meds numerous times. Our youngest is on Prevacid and I can't say enough good things about it.
It can be frustrating, hang in there. It really does get better. :)