yup, not just you. did it when was trying to reduce my overall harming, but did it some before anyway. Have known someone else who did it on occasion too. Wouldn't say it made me less of a human though, can see the logic behind that but don't think that's true. It's just a way of inflicting pain on oneself that happens not to be cutting. (could possibly be thought of as less damaging and less dangerous too)
Does it bother you that you do it?
Hope this helped (at least a bit)
J x