Yes, you have had Chronic back pain with muscle spasm.

Please stop to do the exercises that you listed. 

Because of the improper exercises, prolong sitting, and/ or faulty posture,  alteration of the facet joints in the spine triggers the muscle spasm, which is a mechanical, protective, muscle guarding. 

Please looking for a well-trained massage therapists or Chiropractors in your area. They will give a national treatment....