Question: Recent mri shows mild spinal stenosis, 3 bulging discs, one is pressing on spinal cord. Chronic back pain, lose feeling in one leg standing/walking for more than a few minutes. Surgery necessary?

Thank you, I will ask GP for copy of mri report.
All pain is in lower back, of the 3 bulging discs the lowest one is the worst one, causing my symptoms. Lower back pain chronic. Of 3 bulging discs lowest one is apparently the worst (S1/L5 maybe??).
Standing maybe 5/10 mins same walking, get spasm type pain L buttock, then pins/needles L foot, sometimes L calf, Numb feeling R front thigh with sharp pins/needles, continued standing/walking causes loss of feeling L leg, have to drag it along, have fallen over when trying to continue walking. This is a daily problem, although deliberately don't stand/ walk to avoid the situation.
Never have pain in legs.
Above symptoms are relieved by sitting down and bending forward to stretch back.
Only L leg goes numb.
Not diabetic.
Had multiple physio for back pain, but above symptoms only started 18 months ago. GP then said, nothing could be done, just physio and keep taking Diclofenac. Only asked another GP for mri scan after advice from physio I am acquainted with, but haven't been treated by, who suggested that these symptoms need further investigation. This GP feels I need urgent surgery, nhs appt with neurosurgeon not til December, of course I am very concerned meantime.
To add, sitting painful and starting to get pins/needles L foot while sitting, spend most of my time lying on sofa, that relieves the symptoms apart from some back pain, again sleep well, no real discomfort overnight, but do suffer from bad cramps L leg mainly during night but also during day, mainly if I bend L knee, ie getting out of car, these cramps are very painful.
Thanks

Hi Doctor, I now have my mri report as follows;
Shallow lumbar spine scoliosis concave on R. Straightening of the lumbar spine.
Normal distal cord signal. Normal conus.
L2/3 Shallow broad based disc bulge, extending to L side. No canal or root compromise.
L3/4 Shallow broad based disc bulge flattening the anterior aspect of the thecal sac and slightly narrowing the R exit foramen. No canal/root compromise. Facet joint degeneration.
L4/5 Shallow broad based disc bulge. Ligamentum flavum hypertrophy. Facet joint degeneration. Moderate spinal stenosis. Disc touches both exiting L4 roots in the exit foramena but no confirmed displacement.
L5/S1 Shallow broad based disc bulge. Narrowing of the L exit foramen. Disc compresses the L L5 root in the exit foramen and touches the L S1 root in the lateral recess.
Normal abdominal aorta.

Lower lumber spine degenerative disc disease.
L4/5 moderate spinal stenosis.
L5/S1 disc compromises the left L5 root in the exit foramen.

Your comments appreciated, in order that I understand the implications of these findings when I attend my appt. with neurosurgeon in December.
With thanks

One final question, Doctor.
Would you regard this surgery as best done in the near future, is the
situation likely to deteriorate further if nothing was done?
I have no other health problems re heart/lungs etc and apart from
increasing weight due to inability to walk, would consider myself a healthy
63 year old. Thank you for your comments, I can now attend the neurosurgeon's
appt. with a better understanding of my condition.
Thanks again.