This must be strange since I have never seen reference to it.  I get
pain from pressure.  When I put pressure on various areas of my body I
get pain.  For example when waking in the am I usually lying on my
side, I'll have pain and stiffness in the shoulder and ribs and hip on
the side that I am lying on.  Even sitting back in a chair will cause
pain in the back.  Lying on the front, same thing.  Otherwise I am very
healthly, not overweight, don't smoke, no drugs or alcohol, moderate
excercise.  I'm not obsessed with it just curious.