Ay, ganyan din si baby ko around that age, napakagulat talaga! A few of us moms talked about it and realized it could be teething (check if may swollen gums or drooling), or sometimes babies just get distracted at that stage kaya parang naglalaro lang sila with the bottle, pero honestly, best thing to do is bring her to your pediatrician just to rule out anything else, especially since she was doing fine before. In the meantime, try feeding her in a quiet place away from distractions, at maybe shorten the sessions muna if she's getting playful. Good news is her weight is solid, so she's not malnourished, but your doc can give you better guidance on what's really going on with the decreased intake.