Mothers with babies who have/had reflux

My DD was diagnosed with "reflux". She constantly farts but screams as loud as she can & crys while farting. She is exclusively breastfeed. She is 2 months. She was on zantac for 2 weeks did absolutely nothing. 3 days ago she was put on prevacid seems to be only helping a little bit. Waiting for an appointment with a GI. They may want her to go on a hypoallergenic formula. She is such a good sleeper when she wasnt in pain and now she stays up until after midnight cry and screaming. Literally can not set her down. Is anyone going through this?? If so what helped you baby. Thanks from one tired momma