Well at about 2months she would start to fuss while I fed her, she would cry constantly afterwards, and was before drinking 5oz a bottle then it went down to about 2 or 3oz. I posted here and was advised to move my bottle nipple to a faster level, which I did, and it worked beautifully.
Well now here we are at 4 months and she only eats 3oz, was eating 6oz, then she clamps her gums down on the nipple and pushes it out of her mouth along with a bunch of milk. I've tried everything. I've burped her, waited 5, 10, 15min before trying again, even put 4 extra holes in the nipple since they don't make them any faster. (I use Playtex Drop Ins, the nipples come in either slow or fast) The difference from now to last time at 2months was that she is not fussing now, she just doesn't want to eat anymore. She sleeps fine, she's not cranky/fussy, she doesn't get fussy while feeding her, like arching her back like she did at 2months, she just decides she doesn't want anymore. I need help as I am so concerned she's not getting enough nutrition.
I am on a 4 hour routine. This problem has been getting increasingly worse for the past 3 days.