So I was reading about OCD, and most of the symptoms, I don't have, but I have always been weird about things since I was a little kid (I'm 13 now). These are some of the things I do:
-I usually only step on the cracks in the sidewalk.
-I don't do this as much anymore, but when I was little I used to "challenge" myself to do things, like I would have to walk around the kitchen twice before the microwave was done cooking, and sometimes after I open the refrigerator door I have to put everything back before it closes.
-A lot of times I think about which fingers on my hand would add up to the same size as the rest of the fingers on the same hand, and stuff like that.
-I am always moving random muscles to a beat, and I have to tense the muscles on one side the same amount as the ones on the other. I do this weird symmetry thing with other stuff too. I used to do it even more as a little kid, and I cant remember the different things I do.
also I can pop a muscle in my ankle and I can't stop. I do it all the time, usually at a specific beat.
-I am almost always tapping something.
-Idk if this is related, but a lot of times I breathe in time to a beat or I hold my breathe for a while then let it out, but I don't really think about it that much, it's mostly subconscious.
-Idk if its something wrong, but I've always been messy an lately when my room is messy it really starts to bother me, and I feel a strong urge to clean it up, or at least line everything up.

This might sound stupid, especially to those of you who have OCD. I don't know. But are these symptoms of OCD? Are they normal behaviors and I'm just being silly? Should I talk to a doctor? Please help.