[Sarah-B]

Originally Posted by shortcake2386 i should probably add that after a minute or so of fussing when the bottle is empty she is fine for exactly 3 hours(and not a minute over) if she was hungry she would continue to fuss, right?

Yes I think this is correct. I say try 1/2 ounce less if she is spitting up after. Poor baby girl - she can't suck?! This makes me so sad for her. I hope she learns to do it.
Also was she born early? My 4.5 month old dd is 16lbs 5 oz