My baby two months old and when she's feeding she gulps fast, spits it out, starts crying and seems disatisfied but still eats momentslater.what's wrong?

Bottle or breast?: If bottle, check the mechanics of the bottle first to see if she's swallowing air. Don't heat the formula in a microwave, as that can cause some really hot spots. Try a bottle that has a bag from which you can express air, creating a vacuum like she'd have if nursing. If breastfeeding, check her " latch." if the problem persists, let her pediatrician watch her feed.