surgery for herniated disc right for me? hi,  i have a L4/L5 herniated disc.  i'm pretty young (24).  i have tried physical therapy, etc and it's been a little over a year, and it got a little better at first.  now it has stabilized and i'm okay most of the time.  however, after a day of work, my leg pain acts up. my posture is also poor as a result.   i am okay in the morning after a night of sleep.
i heard that sometimes surgery doesn't relieve pain completely, and sometimes scar tissue can make it worse.  but if surgery can remove the leg pain i experience every night, and improve my posture, is it worth the risk?  please help me.  i would value any experience and advice.

Summarized question: Is it safe to have surgery for the herniated disc when you are 24 years old?