Hi miles, I do count also and sometimes it becomes so invasive with my every day tasks..Unfortunately sometimes it becomes so controlling over me that i cant contain myself from doin it,especially in some situations like tryin to hold a rational conversation with somebody and the counting begins quietley with in me trying to keep a conversation happening at the same time...I count when I walk and I try to set out my own personal records by counting to set of numbers before I get round to the next pedestrian crossing..and some times if I dont get to my estimated time I get so frustarated and that I would have to go back the opposite side of the road and try again.....Youre not alone on this and I empaphize with you and others with this crippling saga..BUT NEVER DESPAIR...as life is a succesion of moments.....and living each moment is to succeed..Best wishes!