I know that the reason I started eating Paleo in the first place was because in early April (Of 2010), I was stuffing my face with all sorts of junk food. Chips, sweets, pizza, essentially whatever my family happened to have or to order in the house. I've never been a "heavy" person and have not been concerned with my weight, having maintained a constant 125 since I was a Sophomore since high school.
It wasn't that I was binging on this food and gaining weight... It was that I seemed to hit a "peak" somewhere, in that even if I ate as much as I could until I didn't feel hungry anymore, I still felt tired. I felt as though none of the food was giving me any energy to work with aside from the occasional insulin spikes. It got to the point where I needed a constant supply of sugar just to keep myself from falling asleep. Even then, I'd get headaches, migraines, sometimes blurry vision, etc. Thus, I started Paleo in early June.
I just wanted to know if any of you have ever felt that way, where your body hit its "ceiling" in terms of tolerance to that kind of food and the energy you take out of it. It felt horrible! I'm glad I eat this way now, but it always looks to me like my friends are getting to that point too.
BTW, for records, I'm twenty, started high school in 2004, and am still going strong on Paleo. :D