How to deal with muscle stiffness and strain (low back)? It makes resuming normal activities impossible. I slowly resumed running already - as this I can do without bending my waist - so I just can ignore back pain and run as my legs are fine. But doing whatever that requires bending my waist (like gardening) is not possible. I can ignore pain, but as my back muscles are getting strain it is physically impossible to bend. I know that it is TMS, and this is caused due to fear of getting hurt and perpetuated pain pathways but it makes me stuck. How to overcome this?