In reply to mgb:
Had to have operation on L5/S1 two years ago after herniating a disk. Nearly a year off exercise all told. That you are needing 2 days in bed after falls would suggest to me you need to stop.
A herniated or slipped disc (the same thing btw) could cause permenant nerve damage if not sorted. Mine was so bad a thumb sized piece had to be taken out to release the nerve.
What you have to know is that the pain you are feeling is due to the nerve being compressed at whatever joint is bulging. The pain feels like it is elsewhere because of the nerve sending strange messages. Real damage can be done.
In most people the bulging disc will sort itself out within 6 weeks. If you are having repeated periods of pain, which I used to, you are in danger of doing damage. I was glad to see the mri scans in the end to be able to say "thats it".
Post op, recovery has been slow for me, but thats down to work commitments and the weather mostly!
Core exercises the only way to avoid more damage.
Take care, Mark