When deciding to clean up my diet, I had some pretty big motivation to do so.
First, I realized that I was consuming so much more food than I needed for my body. I would finish dinner and be so full and uncomfortable. I felt sluggish all the time. Even though I was still working out at least 3 times a week, I didn't feel more fit or healthier. My clothes kept getting tighter. I realized I was eating serving sizes as large as my boyfriend. No wonder why I was gaining so much weight.
Second, I started having some really bad gut issues. I would bloat. I had horrible gas(TMI, but it's true). I would wake up with a "sour stomach" almost every morning and after most meals. Never in my life, have I experienced the "sour stomach" to that extent. I remember thinking, 'What the hell is wrong with me? I have never had stomach issues like this.' It. Was. Awful.
Third, my skin. Oh, my skiiiiiiiinnnnnnnn! I have always had great skin. A breakout for me was 2 zits, seriously. My breakouts turned into zits all over my face nonstop.
And last, I realized everything I was eating was packed with sugar! I couldn't remember the last savory meal I had. Or the last meal where I actually tasted the true flavor of the food.
I finally reached a breaking point one day. I knew my weight gain was because of the food choices I was making(duh!). I came to the conclusion that my gut issues were due to the types of foods I was eating(*hint* I was right!). My bad skin was due to a new makeup I was using, but I knew my diet wasn't helping the situation. The sugar, well the sugar is because I am addicted to sugar and I didn't want to be anymore.
It is amazing that it took so much to get me serious about Paleo. I lost all of my weight while training for my 1st half marathong(<---Ha! I always type marathong.), I lost all my weight by eating really clean. So, it's not like it is totally foreign eating to me. It's just getting out of the habit and eating foods that are convenient.