You are not normal

I can't tell you how many times I have had people tell me I am not normal.  I find this rather amusing.  I was thinking about it today as I was driving home.  One thing not normal about me...... I have to consciously breathe.  I hold my breath all the time.  Not to the point where I'm gasping for air or anything.  I just hold it for a while, then breathe normally.  When I'm driving or reading, I will notice and force myself to breathe at a regular pace.  Strange!  I'm assuming it's a reaction to stress, though I don't feel extraordinarily stressed (thank goodness).  Just kind of a weird quirk of mine.