Hello, the symptoms fit well with a trapped nerve
as your doctors said. If you are not a diabetic,we can exclude a nerve problem. The spinal cord
might have something to do with this. You can get evaluated as to the cause of this abnormal sensation with a lumbosacral radiograph and if necessary an MRI
too. Considering your work where you say you have to sit for a long time, the bad postures that accompany prolonged sitting , a disc degeneration is quite expected .
If it is significant enough to compress the nerve supplying your legs, it can cause these abnormal sensations. You ll be managed conservatively with physiotherapy
and posture training if a disc degeneration is diagnosed. Get evaluated by your orthopedician. Take care!