I have never looked into it much but I have a managed case of something I am sure. As a child I would check to make sure every door in the house and window in the house was locked, sometime multiple times while knowing they were locked.
I am all about routines.
Now as an adult I will check every door, but not multiple times or anything. I also experience high anxiety when I am at risk of being late for anything- even if it isn't something I need to truly be to on time for. I.E. kids basketball practice or something.
Also don't really care for large gatherings of people I don't know. I.E. wife and I used to go to a Halloween Party where we only knew the couple who hosted it...everyone else were strangers. I don't really care for small talk with people I don't know if it is face to face...fine over the phone.
I am constantly cleaning up toys, counters, dishes, etc. Have a hard time just sitting still and doing nothing...have to be productive.
I am just weird, lol.