I don't think any of us could say anything that definitive--testing is necessary to even guess at what your diagnosis might be. But most of us could say that we could not begin to run around a block--ever! In fact if we did anything aerobic for more than a minute or two, we would likely feel like we had been run over by a truck the next day. Personally, I can't run at all and there were times when I couldn't walk. Best, Sushi P.S. (edit) Don't worry, I didn't think that for a minute!