Inflexibility caused by Tms . Why does it happen and how do I deal with it

My hamstrings have become so tight that I cannot bend down without bending my legs at the knees. I've worked with countless physios but still it did not improve . Recently I've discovered that TMS also causes inflexibility. So I want to know how do I work on it so that I can restore my flexibility?

And to add to that . I also have been dealing with back pain and alternating tingling sensations down my leg inspite of no medical diagnosis which makes it sure I only have TMS and nothing else