Thanks for posting your query.
Have you undergone blood sugar level in past? What was the reports?
Do you have backache?
Do you have weakness in both lower limbs?
Impotence with constipation
and increased urination indicates involvement of autonomic nervous system .
is the most common cause of autonomic nervous system involvement.
You should consult with physician and go for blood sugar check up.
If blood sugar is normal then you may have amyloidosis, peripheral neuropathy
Backache with weakness and autonomic nervous system involvement suggest involvement of lower part of spinal cord
You should also consult with neurologist
and should go for CT/ MRI scan.
Dr. Mayank Bhargava