Hi, I am suffering from lower back pain when i ride a bike. When I am not using bike for one week time, back pain disappears. If I have to ride bike, I have to drive very slowly, as even the smallest pit in road make me feel in my lower back or hip area uncomfortable. Earlier I used to do crunches and running. I met doctor and had MRI. MRI report says no issues. But still I dont know why then my sacral, coccyx and lower back area gets painful? Please help me.