Please don't laugh at me, this is serious.
From as long as I can remember I have always been aroused by the idea of being tied up and tortured. I know this is a common "fantasy" for those into S&M type stuff but I think mine is a true paraphilia, in that it was obsessive and exclusionary of other sexual activities (I generally find sex and other people's bodies unattractive). I may post more about how this came to be in another thread.
Anyway, around the age of 16 I started researching my "condition" and found various S&M sites on the Internet. One of the "ideas" I got from these sites was to place things on my nipples in order to cause pain (I am male). Unfortunately, the objects that I chose were not designed for this purpose, they were tiny "alligator clamps" with sharp teeth that you use to connect wires in a science project. Anyway, I would place these on myself and masterbate facedown, placing pressure on them in order to induce more pain, and I did this repeatedly. The nipples would be tender for a couple days afterwords, but I didn't think it could do any permanent damage at the time.
I am 26 now, and I have noticed for a long time that my nipples (especially the right) were oddly shaped and sort of deformed looking, and I wondered if what I had done could have caused this, but I never took it too seriously. However, recently something caused me to examine them a little more closely, and the more I look the more I am convinced that I did this to myself. I know that male nipples serve no function, but I am worried about other people seeing them and what they might think of me and how I will always be self-conscious. Then I started looking other men's nipples, and noticed that they are perfect little circles, not all weird shaped like mine, so this only reinforced my fears.
I don't know if I can live with myself having done this. Am I some kind of freak? Did I really have to take a risk like that for some sort of short-term sick sexual pleasure? It's not that I am ashamed about my sexual fantasies, I did not choose them, it's just that I might have permanently damaged myself in a way that was unnecessary and stupid, and I only get one body. I now worry about this obsessively - for about three months I have thought about this at least once an hour while I am awake. I go to bed early because I am depressed (about this among other things). Even at night when I get up to go to the bathroom I think about it. I have tried talking to a psychologist, but I think the reassurances he gives me are just rationalizations. I might go to the dermatalogist to ask his opinion but I think he might judge me if I tell the the true story of what happened.
Because of what I have done, I fear I will never never look or feel "normal," and I will always have this "mark" of being a freak, even if nobody else understands what it it is. I just want to be a normal person with a normal life and family. Other than this one thing I am the most conventional person I know, not into tatoos or piercings or anything like that, and that is why this is so hurtful. I feel horrible, I just don't know what I am going to do with myself.