I do this frequently, stuff I feel guilty for present and past, its such an awful feeling, and sometimes, when I feel a little guilty about something in the present, it magnifies it, because of my past , it mixes together, so I punish myself by thinking I dont deserve things.

Even the simple things, like people being nice, or goung out and buying something for myself. Its irrational. Im reading a book called getting past your past. Its been helping alot.