I have Obsessive compulsive disorders are you familiar with that it is a mental disorder? 
Somewhat I have know a few people with OCD
Yes I have it bad at home from hand washing, checking if doors is closed or things just being out of place.
I notice when I get stressed I get a little OCD myself.  I obsess about whether I have turned off the iron or locked the door.
Yes it can be very hard to control at times and sometimes we be like do it makes sense but just can not help it.