How do you feel after eating(cheating) a SAD meal. I have been primal since early this year, and I notice that every time I eat crappy food(pizza, cereal, junk food) I feel poorly. A very unsettled GI feeling. I also notice that high carb meals will make me feel like I have taken a shot of caffeine or something. I feel as though my heart rate is elevated and my chest feels like it does after sprinting a short distance.

Is this a normal reaction? Do any of you have similar reactions?

It makes sense that I might feel this way, but I was just curious as to others experiences. It definately makes me want to be as strict with my diet as possible.