I never had spine injury. All I remember thar last year I fell from 3-4 stairs and I then after few months used to have problem with sitting which is in tail bone. But if I remember well since last few months I used to have lower back pain whenever I used to sleep with straight posture and next morning I used to have pain. Sometimes sitting on chair for a while also used to give me some pain. If I half bend with leg straight it gives me some pain at lower middle back. Please suggest can this cause lesser sensation of full bladder feelings and ED. What test I should perform to check the same and which specialist I should visit?