Hi J.,
I also have a reflux baby so I feel your pain. If you are breastfeeding, your baby may be sensitive to something you are eating. There is a short list of top tummy trouble causing foods you could try to eliminate from your diet -- I think they are -- dairy, soy, peanut, wheat, and something else...please check on the web or wiht your doc. Our little one seemed to be gassier, much fussier when I ate dairy so I dropped it from my diet and went to using Rice Dream (rice milk) whenever I needed milk (like for my morning coffee!). It has made a big difference.
Our ped also said that caffine and greasy foods (anything deep fried and most fast foods) can cause reflux flare ups -- again, if you are breastfeeding.
Someone mentioned sleeping on an incline. There is something called the Tucker Sling that is highly recommended for reflux babies. I didn't use it personally,but have heard it mentioned often. Do you otherwise keep your baby girl upright after feedings for like 30 - 50 mins? This was suggested by our ped. After night feedings, I still put our 6 mos old in his baby chair to sleep for like an hour before putting him back in his crib to help keep the milk down.
Good Luck!