Index Of/self Pics Have You Heard Of This Form Of Self-mutilation?

Have you heard of this form of self-mutilation? - index of/self pics

For the third year that I used to crack with your fingers. Well, not only crack ... I bent down and pulled his fingers twisted (in particular), the index until they swell up and even had cold hands, the lack of movement. I am now 19 and still, and have found that I can do in times of stress and depression. I compare it to someone who cut or burn themselves ... Have you had prior to this? What are the long-term effects of this and where can I find help.