Is there a reason it feels good after i cut myself?

It could be a sense : Of relief. Someone who feels empty inside may cut to feel "something". Someone who is hurting emotionally may cut so that the physical pain will distract them. Some cut to punish themselves. One may cut in the belief that they will let out negativity or evil. Regardless of why you use cutting to cope it is unhealthy. There are better ways to cope and to feel better. Please get help. Dialectic.