Aw don't worry, kaya mo yan! At 2 months, it's actually normal na may changes sa feeding, sometimes babies get more efficient so they drink faster, or they're just not as hungry as before, lalo na kung lumalaki na sila at hindi na ganap bawat 2-3 hours. A few of us moms noticed the same thing with our babies around that age, and it turned out they were just adjusting to their growing needs. Best to check with your pedia though para sure, and para ma-monitor din ang weight gain niya, that's really the main thing to watch para ma-rest your mind. You're doing great by bottle feeding, mommy, trust your instincts kung something feels off talaga!