Severe back pain in both sides of spinal..due to long riding of motorbike regularlly ..how to get rid of it?

Chiropractor: The back pain can be caused by muscle strain, spinal stenosis, ruptured disc, nerve impingement ... I think you might experience musculoskelekal issues. You might benefit from heat pad, stretching exercise or soft tissue treatment by chiropractor. If you pain is not improved, you can go to see a pain management doctor.

Stop Riding???: It sounds like your pain generator is the sitting position. This can put stress in the discs in your lower back. That along with the vibration of the motorcycle can be the main cause. The easy answer is to stop doing what is aggravating your condition. If this has been going on for more than 2 weeks then now is the time to see your doc.