 [ Symptoms ] at the age of 40 is it common to fall apart  the chief medical officer in the army told me i had been born with a condition in which my sarcral joint was made of cartlage instead of bone i herniated l3l4 for months i have had knee pain and dismissed it as possible arthritis however recently i started having neck pain that radiates down over the left shoulder preventing me from full neck motion after about a week the pain subsided and now i am having knee pain again on the interior side of the right leg [ Disease ] hi its a warning have you been strenuous through your life so far always working to the edge then yes it will happen like i said its a warning time for you to start slowing down if your still in the army think about getting out or find a good number in there know what i mean try the motor pool worked for sgt bilko good luck