Johnny- ever considered getting yourself down to the pool? For about five years I could count on losing about six weeks a year in bed to bad backs. Since starting pool exercises three years ago, in spite of pretty devastating muscle problems which continued, I have not been in bed with a bad back since.
Stand in water chest high. 1.swing leg forward and back, straight leg, having tightened back and lower abs first. 2. tighten back and abs, swing arms forward and back, trying as it were to knock yourself over. 3. Tighten abs and back, swing arms from side to side. 4. Tighten abs and back, walk across pool and back, forwards, backwards and sideways.
You'll notice tighten abs and back features pretty largely in the instructions. Don't work hard at it, just think about it. All of this can be done quite gently so you can begin to get going pretty soon after you can actually get yourself to a pool.
Even if its your first time ever in bed with bad back, it's well worth while make quite sure it gets really well. You run a lot better afterwards if you do.
The right sort of anti-inflammatory for you can also cut recover time by a factor of three.
Earnest sympathy. M