Hi all!!!! I have been trying to do some cleaning lately and I can't afford a cleaner at the moment. I was only going to do a bit at a time and pace myself but as usual I ended up trying to do it all in one day as everything is such a mess! I spent yesterday cleaning and I thought I was getting away with it until about 2 hours later when I felt terrible. I was so stiff and my muscle hurt that bad I couldn't get up. I was crawling around on the floor and I had to lay still or I felt something bad was going to happen. The pain was getting worse and worse. Today I feel like I have been hit by a car and my glands in my neck are swollen and I still can't move out off bed. Is this PEM? As these symptoms came on within a few hours after pushing myself too hard and I though PEM only hit you 24 hours later?