Ew
 

I just ate and now I feel a bit sick.

Either that or I feel full. I can no longer differentiate between the two.

I've got to stop doing this.

At least you recognize you have to stop. One step at a time...

What I meant was that I have to stop pigging out.

Maybe your body isn't used to normal amounts of food anymore and that's why when you eat you feel sick ?

Hope you're ok ...