keep the baby in an upright position after each feeding and take breaks when feeding to burp the baby.

try propping her up a bit more when she's being fed and just angle the bottle so that she doesn't drink as fast

Mine were in the same boat, if you have a great doctor call them....mine gave me some helpful tips...smaller amount more frequently, burp every half ounce.....there were more @ashley1208

sounds like acid reflex... try feeding her smaller amount and slower.

talk to the Dr they maybe able to help