I have lower back pain mainly on the right and the left side of spine. But the pain is not present on the both the sides simultaneously but it switches sometimes from the right side to the left side or vice versa. If today's night it was on the right side then tomorrow it will be on the left side. It all occur due to lifting weights in the gym by doing squats and deadlifts. Could you please tell me the category of pain or injury? Should I do stretching and walking? How much time it will take to recover completely if it recovers completely?