Many thanks for your interesting story.
I have never had any previous back trouble and at age 63 took up cricket again after 42year lay off!
This lay off was due my heavy flying rosters abroad.
I feel this injury started when my leading bowling leg slipped forward during delivery stride during indoor net practice this was due incorrect footware on a polished floor.
I attempted to play through this discomfort for a few weeks which has not been a success at all. I suffered during the week following the game.
The pain now seems to come and go, it sure comes back big time after I dig the garden or barrow earth around.
I would be totally amazed if I have a slipped disk as I have no pain in the back area. My pain is more lower buttock and down the leg.
However thanks to your reply I will get an MRI scan.
Funny thing old age, I should have stayed chasing females and passed on the cricket!