Hello Gail!How did they test you to get your diagnosis?Was it just a muscle biopsy?I had an iron infusion/possibly covid which set of a reaction a few days later.I lost all of the strength in my trunk of the body that I lost the ability to walk.After being bed bound for months.I am able to walk again,but it is not normal since I still don't have the midstrength.The doctors only found a couple things with the spine and neck,but nothing needing surgery.No doctor knows what it is.