I own my own business and don't have medical insurance so I've been researching my back problems online in the hopes to avoid going to the doctor’s office and racking up large medical bills. I've had back problems on and off for a couple of years (maybe 2-3 times a year where I can't walk for several days) and just recently I've been having pain in my left leg down to the outer portion of my calf/ankle. With the research I've been doing online, I think I have sciatica. It's very difficult for me to drive & sit. I'm in good shape and workout regularly when I don't have back issues. I do upper body workouts (lift weights at the gym) 4-5 times a week and do cardio (stairmaster-type machine) workouts 3-4 times a week for 25-30 mins to work out my legs. I have never really been into stretching so I'm VERY INFLEXIBLE. Here are my questions:
1. Does your book (RYB) deal with 'muscle imbalances?' I noticed by my online research that this could be the cause of back issues. example: over developed quads can pull your pelvis forward which could cause back issues.
2. Websites talk about inversion therapy with a table/contraption. Does this work and should this be apart of my rehab routine?
3. Can sitting on a thick wallet in my back left pocket be the cause of my back issues and my sciatica in my left leg?
4. I'm 5'6", 32 yrs old, and 205 lbs but I am pretty fit/built (I wear 32in waist for pants)...should I get my weight down? am i carrying to much for my back?
5. Should I focus on stretching workouts like yoga instead of lifting weight? Since I'm very inflexible, could stretching be the answer to my back/sciatica issues?
6. Now that I've gone into some detail about my condition and body type, is the Rebuild Your Back book/system made for me?
I'm sorry for the long winded post but I've read over some of this forum and people seem to be genuinely helpful and supportive. I also think this website is very informative compared to the others I've researched so I've decided to post on this one for help.
Any feedback or thoughts would be greatly appreciated...

Thanks,
Smitty