I was hobbling around on my crutches and I stooped down to pick up some kid laundry laying on the floor; I felt a sudden burst of pain in my lower back and I fell to the ground in pain. My back has been alternating between dull pain and spasms ever since. Yesterday I had to attend a referee clinic for Karate in MacKenzie. That was very difficult. It involved lots of standing, making calls during a kumite match. I made it, but I was exhausted from dealing with the pain all day.