OCD

I know very little about it but am convinced that I have it. I have just found myself adjusting the chopping board in the kitchen so that it is completely symetrical with the worktop. Earlier on I had to close the cupboard doors that my wife so kindly leaves open from time to time, as it just simply bothers me - why it bothers me, I can't explain. I'm not quite as bad as Julia Roberts' husband in Sleeping With The Enemy - I don't have to have all the cans in the cupboard facing the same way and neatly stacked etc. but sometimes I'm not far off. My workflow is marginally slower than it needs to be because I can only use settings on my sequencer in even numbers - even if it takes a few seconds with the mouse to get an even number displayed I will do it because I simply cannot have odd numbers up there on the screen. Go figure that one out! I think I've always had this. I can remember walking to school and counting off the number of paving flags I walked over. Every time I got to 3 or 9 I had to start again. Once again I have no idea why I had to do it. I haven't really researched the subject in depth, but I think maybe I will now. Not that I am looking for ideas on how to change or anything - I can live with the mild form I seem to have, but I would like to gain more of an understanding of it, as I know it can be a bit of a pain for those who have to live with me.