Just another observation, but the meds people are on will also influence which PEM symptoms they now think are the worst.
When I went down to Stockton for the Stevens tests, they had me stop my pain med and nuvigil. I was not a happy person.
Some time back, my Dr thought it was important to start some treatment for pain. It stopped my occasional fibro type flares. It also helped sleep - which is an indication that at some point during the night, pain was enough to wake me up early. And I was surprised that it really helped to shorten my PEM recovery time.
So, as an example, pain in my muscles and tendons next to my joints might have made the list instead of poor coordination problems - but my pain med prevents that.
Edit - guess we could have people stop their meds to get a more accurate survey, but .... ummm ... I'm not sure I'd want to volunteer for that ...