Uy normal lang yan sa ganitong edad, lalo na sa first week, ang newborns talaga ay frequent feeders at mas mabilis nila ma-digest ang formula kaya 2-3 hours lang between feeds, hindi always exactly 3 hours! Since bottle fed siya, it's also possible na mas mabilis napupuno pero di siya satisfied sa sucking reflex, kaya try mo ring mag-burp in between at let her suck a bit longer if she wants. That said, worth checking with your pedia kung consistent ang pattern na ito and kung normal ang weight gain niya, para ma-rule out kung may latch issues or formula concerns, para sa peace of mind mo talaga, kasi stress mo if unsure, at ang stress ay makakasama pa dito haha.