Please help, my daughter won't eat.

My daughter was diagnosed with acid reflux after a very painful and sleepless month after she was born.  She was started on axid and that helped a little bit, then finally she started prevacid.  Prevacid had helped tremendously until a month or so ago.  She has started refusing the bottle.  I literally have had to force feed her to keep her nourished.  I am getting so frustrated.  I don't know what to do.  Is this psychological?  We did a ph test and the doctor went into her esophagus and there is minimal damage.  I have been the only one feeding her for over 2 months now.  I am at the end of my rope.  Can someone help me?