shrinking bump?

Megan
Hi ladies!
I am a little over 31 weeks pregnant and am measuring at 32 weeks. I recently noticed within the last 3 days my bump has seemed to be smaller. It is enough of a difference that people I work with have made comments about it (my fav... not). I also have noticed within the last 3 days my appetite has been INSANE. I mean... eating double what I used to and am still hungry some day. I started adding in a pure protein shake in the morning to help fight the hunger which has helped. I'm just starting to get nervous as if something is wrong. I feel like I look like I did when I was 20 weeks pregnant. I can feel baby move just fine.... just worried :(