question: im a 33 year old male, 510 90Kg, I hurt my back when i was younger (16) playing soccer when someone fell on me.  Now in my 30s I have experienced loss of feeling in my legs during exercise such as jogging, it returns slowly once stopped.  I was given psyiotherapy to strengthen the muscles in my back and this has helped.  If i sit/stand/lay in an akward position for too long i experience lower back pain (i am used to this) however lately this has been accompanied by immediate diahorrea with the back pain occuring first.   My question is are these two things related and is there something simple i should be doing to manage the situation