Physically, I have a lazy eye, which I have grown to live with. As a result, I only ever focus out of one eye (usually my left).
Mentally.. Well, I was born with Autism, which I have managed to mostly grow out of. Now I'd say I just have a slight social anxiety disorder. I haven't been diagnosed with anything else, but I do think I'd have ADHD.. I'm not good with the whole focusing or concentrating thing.
I don't know about OCD, but I do remember when I was younger I had to make everything 'fair'. For example, I would count my steps, and I would make sure that my left foot and my right foot took the same amount of steps. I would click my fingers on my left hand 3 times, then I'd have to click my fingers on my right hand three times, to make it 'fair'.
I also have never really handled sudden changes very well. I like things to stay the same (this would be a result of my Autism), but I have grown mainly used to things changing, even suddenly. Recently, however, I was in a play, and the musical director changed a line in a song the day of the performance, because the actors couldn't get the original line right. I started freaking out because I could barely handle the sudden change.. I had to take a breather to calm down.
I also have insomnia, not as bad as some people get it, but it does result in me not sleeping until at least 3 most nights (unless I am utterly exhausted).