Reading this thread has been fun 
It has to be said there's a lot of us with anxiety here!! Esp with the obsessive counting (since as far back as i can remember) its an anxiety reducing behaviour which bugs the hell out of me when i can't stop myself.
I still count all the windows each house has facing the street we're driving on. Doesn't matter how fast we're going. I MUST. COUNT. EACH. ONE!
Also, used to do spill on clothing price and place of purchase. I think that's to do with not feeling totally comfortable taking a compliment?
I'm also like a juke box. Any word said in any melodic way can get me going.
I cover my phone/laptop camera when i'm picking or cleaning my nose - with or without tissue!
I have to swish my mug with boiling water, even tho i know its clean, before i make a cuppa.
When i put my knickers on every morning i bend down to semi squat to make sure they're comfortable and not shrunk in the wash or something.
I do the 'wana go home' thing when upset/overtired too. I've never felt safe or at home growing up (unsafe environment/people) or even now not fully 100%
I put on a well spoken "phone voice" when im talking to a seemingly posh/middle class person and watch their face as i slowly start talking in an accent not so "proper".
When im at the shops or bus and skim read titles of articles in the paper or book and it's BS (almost always) i shake my head vigorously and start mumbling how brainwashing we allow our media to continue. I mean... people must know its bias bs!! 
I always leave a last biscuit or 2 in the packet 
I smell my fart before letting someone know - just incase its not that potent ha....ha...