RE: A serious question... I promise
I injured my back eight years ago and because I didn't listen to the doctor's advice after the 1st operation I now have hadsix back operations that have left me with permanent nerve damage and in constant pain. I am still able to do some very limited hunting as long as I stick to flat ground and make arraignments for someone to drag out my deer.
My advise is to listen to your doctor and your back. If pulling the bow back is causing pain it could also be causing more damage to your back an nerves. Depending on your state regulations you could consider going the crossbow route like I did. It is nearly the same thrill as bow hunting with a vert.
Bob