This is my first pg so not trying to claim to be an expert..
I am hungry ATM but the smell and even looking at food makes my tummy jump. I've been really bloated on and off so i'm sure that is all ok. My GP said the bloating is normal and just caused by hormones changing and also because your organs are moving/stretching that can also cause it.
My m/s has kicked in this week and the whole food thing is even worse now.

All part of the apparent fun so do not stress.