You might try gokhalemethod.com. She (Esther Gokhale) was featured on Dr. Joseph Mercolas site. You can search Youtube for some of her videos on correcting posture. I had similar issues, though I was never checked out by a doctor or in quite that much pain. One thing I can tell you is that it it took time to get that way, and it took time to force my back into correct posture. Exercise helped a LOT. I can't tell you how many times doing a bench press actually made me feel better. The weight (usually around 80 lbs) would often "crack" my back, and then I'd be good to go. Get used to using an orthopedic pillow, and a firm mattress that doesn't sink in.
Lastly......diet. Paul's a big guy. All I can say there is, Markus Rothkranz. Look him up. He's to raw food what Paul is to permaculture. Hope Paul gets better soon!