I think whether or not this could be diagnosed as being a symptom of OCD is something a mental health professional would have to determine. I suppose it's possible it could be one symptom of OCD particularly if there are additional ways you meet the criteria. But, on the other hand, I suppose it could also be something that would just be chalked up to habit as well. There again, my personal opinion would be that this is something a mental health professional would need to determine.