At our local support group meeting on 3/16 one of the members “froze-up “and was unable to hardly walk with help. He stretched his arms with help up to the doorframe and let his feet dangle…in a few seconds he was able to walk freely again…..the “monkey” was off his back!
He seems to have the same results I get from stretching my back muscles beyond the normal range. I wonder if along with the tightness & pain, that there is an energy flow blockage that occurs in our spinal column that inhibits movement?? I need to ask him next meeting if he has also had spinal injuries..(I sure did!)  .Will keep you updated on this>