Have just been sat at the computer doing some work and when I got up to walk my left leg felt dead and completely gave way so I was on the floor.
Then I got the most awful pins and needles which was hardly bearable. It still feels a bit odd but looks ago.
I do have a terrible habit of sitting on my one leg while on the computer and I was doing this but I had only been sat here about twenty minutes and sometimes I sit for hours like it and it has never happened before!