I've had CFS for around 17 years. I've had a few really good patches... But then I go "Oh, I'm feeling better!!" and go do more and work longer hours... Then I get sick again.
I had a really great patch a few years ago, I felt awesome... So I uped my work hours, lol.
Now I'm working slightly to much, and all my symptoms are back. BUT I'm still able to keep up with my hours, somthing that I've never been able to do before.
That didn't really answer the question did it?
Basically, yes. I've had nearly full remissions, and full blown relapses, and then another remission. BUT the relapes are getting further appart, and I'm more able to keep going through the relapses