You need to be a detective here. Try 1 series of end range movements; bending forward or back, rotate towards or away from. Do 1 or 2 sets of 10 of only the 1 direction. How do you feel and where, during and afterwards? Is there a change ? if it is better you know what you need to do. If it is worse then try the opposite. When you find what makes it better do it 6-8 times a day. Always reassess. If walking makes it better then...
You are looking for the body posture and movement that provides a lasting relief then staying away from the opposite until your body heals enough to slowly return