Morning feeds

My 16 week old went to bed at 730pm, woke up at 5am and ate 6oz then went back to sleep until 7am.

It's bow 8am and she still doesn't want to eat.

So, it's been 3 hours. She usually wants to eat every 2-3 hours but lately she waits forever to eat her second bottle and then the rest of the day I feel like she snacks constantly.

What's up?