The pain in the leg
more so on standing and sitting for a long time could be the remnant of the original pain. Indeed, discectomy
, or any surgical interference, will leave behind some amount of discomfort for a while. This may be a month or 6 months !
The nerve pain
is a radiating / spreading pain while the pain u describe appears to be due to myalgia, ( muscle causes).
Hopefully you do not have any skeletal abnormalities, like scoliosis ( lateral bending of the spine.
So, I suggest you need to continue of Physio and take simple analgesics like Paracetamol
1000 mgm. daily to break the pain cycle and local massage with diclofenac
with best wishes