It could definitely fall within the scope of OCD on the obsessive level. It could also be anxiety, because there is a high level of obsession within anxiety. (The best way to get an idea of this would be just to talk to a doc because they can help you better than I can, or anyone else here - we're not doctors. OCD is an anxiety disorder, so that's where the similarity could come from if in fact it is not OCD.)
I do all of the things that you have outlined. I even have the same problem with my feet. So hopefully it will help you to know that you're not alone. I have also been diagnosed with OCD and BPD, among other things. So yeah...again, I think you would benefit from going to a doctor and getting a professional assessment, if you haven't already.
It would be nice to hear from you again and to see how you're doing now.