Your symptoms can be due to pinched nerves in the back secondary to;
1) Herniated/degenerated disc in back
2) Lumbar spondylosis; bone spurs in the back vertebrae pressing on the nerves.
Following investigations would be required;
1) X-ray of the lower back
2) MRI of the spine
3) Nerve conduction velocity (NCV) study
4) Electromyography (EMG).
5) X-ray of the leg.
Physical therapy may help you which is the mainstay of the treatment.
Neuropathy and a local tumor can be the other possibilities of the diagnosis.
Wishing you a speedy resolution and all the very best in life.
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