Always hungry...

Brandi • Been together since 2003 and got married in 2014 :) Had our first child January 30, 2016💜😁
My 3 month old constantly wants to eat when she's awake. I have been told she should be eating every 3-4 hours, but she wants to eat every hour. I never deny her a bottle. Any ideas why she's been so hungry over the past month?!