Though I have been ill with CFS-like symptoms for 30 years on and off I still havent officially been diagnosed. I have had periods, sometimes for a month or so, when I feel totally normal and can exercise a bit. Over time these periods got smaller but I would still have a few days at a time of feeling normal. Only recently have I got so much worse that I now hardly ever have a day when i feel normal. I feel flu-like symptoms and brain fizz (a sort of weird feeling of my brain slightly trembling), and aching limbs most of the time. I wondered what other people's patterns were. How often do you feel normal? What does your normal feel like? do you have periods where symptoms are not just diminished but actually absent? i am really curious to know.