You should do just the 3 oz at at a time. I know with formula you have to give more but my 2 month old only drinks 2oz of breastmilk per feeding. That could be the reason she is spitting up. Also sitting her up while feeding instead of laying her down is better for digestion because laying down is force feeding. The babies stomach are small, they don't need that much. If you pace feed I'm sure she would do much better.

@beebaby, she'll be 2 months the 11th. She doesn't always eat 5 oz, just sometimes. Sometimes she'll only eat like 3 or 4

5oz is a lot of milk for a 1 month old. You should scale it back a bit and try pace feeding her. Reflux is definitely over diagnosed in children.

@lovelily, her next appt is next Wednesday for her 2 month shots so maybe we'll figure something out. @beebaby, she's eating about 5 oz and yes I burp her every 2 oz

How much is she eating and are you taking breaks in between to burp her?