In reply to pamph: I had a badly herniated disc (requiring surgery) on L5/S1 and also have something iffy going on in my C-spine (not entirely sure if it's disc related or brachial plexus) Anyway, I'm happily running (though I never actually used to run pre-surgery cos I was a 40 fags a day kinda gal and running would give me a near heart attack
Quit the fags 3 months before surgery and started running 4 months post surgery.
Have to say though, running *does* hurt my back and neck and I just can't run fast (although I did manage a 5k in 21 minutes with lots of training, back in the days when I was also doing lots of back strengthening exercises/Pilates type stuff) Ran a half marathon a couple of years ago (not breaking any records mind!)
Remember, you have only got one back though so look after it!
Use your body and your pain levels as a guide. If it hurts too much then don't do it and if it hurts just a little then either take some painkillers or just man up and run anyway. I don't put much faith in what doctors say tbh and use my own body as a guide (actually that's shite, I'm always ignoring warning signs and hurt quite a lot but I can't help myself