What's in My Belly

I eat some food that smells a little weird. It's not old so it should be fine but soon after, my belly starts hurting. I lay down to see if it'll calm down by rubbing it but it just makes it feel worse and it starts moving by itself! I unbutton my pants, lift up my shirt and start fingering my belly button. It feels like something needs to come out of it. My tummy moves more and more until...whats this?!....MY MINDS BEEN TAKEN OVER BY AN ALIEN!