Working out? P90x? other alternatives?

As the title says im interested to see if there is anyone on here who has done this or possibly thought about it. I know pretty much everyone on here works hard and is busy a lot. So it is hard to manage and balance all things considered. For those of you who know me im 22 years old, got in a car accident back in june and havent been right since. I was working out and hitting the gym prior to that and dropped over 30 pounds. Now with my narcotic painkillers I need to eat so the meds sit well with me, resulting in additional unwanted weight. Physical therapy, tens unit, and any kind of machine or massage therapy you name it and it hasnt helped much at all. Injections into my spine, nope they really havent helped either. So what do I do from here. Hope another needle into my spine will the the trick? I don't have any faith in that before due to the fact that my 2 previous shots havent worked. So I got to thinking, why not do it the old fashioned way? I know its gunna be very painful and pretty much torture but i figured since nothing else has worked since June why not try something else? whats the worst that will happen Ill be in the same place im in right now? Plus Im 22 and want to look and feel good so i figured what the hell.

Hopefully there are some feel good stories on this forum.

If you take the time to watch some of the videos they are truly amazing.
http://www.facebook.com/p90x?sk=wall

-Joe