That's amazing that you can walk 4 miles, I can barely make it up the stairs. I'm not the best at family advise, but you can email me at mmthompson82@hotmail.com. I have no idea why your son is acting like that, I have a ton of drama in my family and only 4 weeks out of surgery I'm going to have my two teenage cousins moving in to my house. I feel to fragile to deal with this stress but my father thought it would be best for them here since their mother is dead and father almost dead. I can't say no. Anyways shoot me an email, it will probably help me to talk to someone who is doing well and it might make you feel better to know you are past the difficulties of 4 weeks out. I've never in my life walked 4 miles so really I think that is fantastic. I would be happy when I can walk around the block.