The only "newness" of my ME is which foods or food components I'm sensitive to. My main symptoms are lethargy and brainfog, and the severity mainly depends on dietary sensitivities. Some days I feel clear-headed and feel like going for longer than usual hikes; other days I don't even want to do my usual 45 minute walk. Some days my journal entry is "walked to the bridge", and others it's "trudged" instead of "walked", and sadly less commonly "walked briskly" meaning that my severity was below my usual baseline. Sometimes the response to a food also makes me slack-jawed, and other times clench-jawed. Not a significant problem, but a sign that something isn't right.
On worse than usual days, I might experience aches, or that general malaise common with a flu. Some days I can't even enjoy reading, because I can't seem to focus on the writing. Trying to do any craft work is an exercise in frustration, since I make stupid mistakes, and every minor hassle (a tool not being where it should be, something falling off the bench, a cord catching on something) seems blown way out of proportion. On top of that I have to wonder what food might have become my latest unexpected intolerance.
Two days ago, I gave up on sitting and reading, and lay down (which I rarely do in daytime) because my symptoms were unusually severe. I think it was because I used curry powder (contains turmeric) instead of cumin in dinner the day before. Turmeric is one of those things that I could tolerate at one time, but worsened symptoms the last time I'd tested it, but it was a reasonable time for another test. I certainly didn't expect that severe of a reaction. That had mostly passed by bedtime, but I ended up with insomnia at 3:30 AM. I think I'll avoid retesting turmeric or ginger for another half year or more.
Is that the sort of detail you were hoping for?