I pop my knuckles a lot, and each time I do I then have to pop my wrists, elbows, ankles, knees, and neck.
Anytime I hear someone clear their throat, I have to clear my throat too.
If I can't have a cigarette for whatever reason, I suck my teeth - by which I mean I clamp my mouth shut and produce as much suction as I can. This made my life hell last week when I had my wisdom tooth extracted and couldn't smoke for fear of dry socketing the extraction site, and couldn't suck my teeth for fear of dislodging the blood clot.
No matter how hot it is, I have to have something covering me while I sleep or I can't sleep.
I cannot stand to have the sheets/blankets tucked in around the sides or bottom of the bed, I feel like I'm trapped.
I can't have anything touching my throat when I go to sleep or I have panic attacks and can't get to sleep for hours. Since I sleep on my side most nights this can be a really tricky exercise in hellishness.
Whenever I'm popping my knuckles I have to include the one at the base of my thumb, and I have to crack it by setting the joint against my forehead and pressing as hard as I can until it pops.
When I'm typing, and I hit enter for a new line, I have to pop my wrists - just realized that one.
I used to separate my food on my plate and eat all of one thing before moving on to another, and still do for most meals - though as I cook more complex meals and my palate becomes more finely tuned, I can combine more things these days.
I grind my back teeth until my jaws ache, and not just when I sleep.
Since spending years working in call centers, whenever I'm on the phone with someone I either have to have my blue tooth headset in or I have to have the phone on speaker. I hate holding a phone to my ear.
I chew my nails on a regular basis to keep them neatly trimmed, except that I always have to have at least one nail of decent length, in cast something gets stuck between my bottom retainer (the permanent metal bar kind) and my teeth and I need something to fish it out with.
I lean a bit too heavily toward hypochondria, and can't help but think that every little ache and pain in my chest is a heart attack. I'll stay awake for hours if I have the least little pain in my chest at bed time (I dislocated a rib a while back and it never fully healed right, so this happens a lot), basically until I pass out from exhaustion, or I'll do something physically demanding that raises my heart rate into the good cardio range, figuring that if it were a heart attack that would have killed me, and since it didn't I'm safe to sleep.
I count steps every time I go up and down stairs.
I count cadence in my head any time I walk more than 3 blocks consecutively. I never served in the military.
I also segregate my multi-colored candies into groups and eat them one group at a time.
If I have change in my pocket, I constantly count it by arranging it in my hand in order of largest coin to smallest and flicking the coins one at a time out of my hand.
Man, I never realized how screwed up I am.