Dear friend, welcome to HCM.
it is a slipped disc
in lumbar spine
causing pressure on the nerves, hence your backache
also have tingling/ numbness/ weakness in limbs?
I think for your profession, you should a good spine surgeon's opinion if surgery is required. only complete exam would tell you the correct answer. now a days microdisc surgeries are available and minimally invasive, if one is needed.
so get evaluated for the spine.
take care and pl. keep me posted on the progress.