Here are some things I really hate ...

1. The feeling of excess fat on my midsection and legs (the first place I gain)
   
2. The feeling of clothes not fitting well
3. Feeling sloppy
4. Starting up again at the gym and feeling weak and out of shape
5. How much more tired I feel with extra weight
6. The not-so-confident feeling ... that sux
7. Not being able to get excited to go to the gym or excercise in general

Hate can be a powerful thing. Because you hate the way you feel, it can inspire you to make positive changes.