Lesson Sequence, Medical Professionals and Herniated Discs

After voraciously reading "8 Steps," attending the introductory class and the first in the series of six weekly lessons, I'm a convert. Stretchsitting relieves my pain and stretchlying was a revelation. I'm a side sleeper. The idea of sleeping on my back seemed improbable, but the second night I tried it I slept through the night, waking up in the same position! That's the good news.
For over two years I have been treated for lumbar spinal stenosis through chiropractic, stretching exercises and cortisone injections. Sometimes the pain diminishes but never enough to allow me to return to normal physical activity. (I can sit and lie, but can't stand or walk for more than five or six minutes. Successful treatment can extend that time to perhaps ten minutes--not good enough.)
That's the bad news. Now the questions.

When asked yesterday, my Kaiser doctor told me I have three herniated discs in my lower spine. (He may have mentioned it before, but I didn't remember.) How shall he work with me while I learn these techniques? I very much doubt he has any significant knowledge of the method. How shall I coordinate the class with the recommended variations in sequence? My next class is tomorrow, but I didn't want to needlessly consume class time for this matter.