I have been flat on my back most of the time the last ten days. I am finally able to actually sit up for more than a few minutes. A major victory.
If you note the date I joined this forum (08/1807) you will know the last time I was laid up by my back. I spent a lot of time on the net, and stumbled it.
Take recovery slow, and listen to your body. Slow but steady progress is the key. All the best.