I agree with what you said about NutraSweet not causing CFIDS. But it can cause problems. About 2 weeks ago I ate large doses of this in a Jell-O salad (for 2 days!) without knowing it was sugar free Jell-O. I have had a major set-back with SEVERE joint aches, especially my right knee which was hard to walk on, fever, sweats, chills, HEADACHES, & extreme exhaustion which put me back on the couch unable to function. I finally went to my Dr. for pain pills & he said, “What did you eat?” As it was an allergic reaction he said, & it would take about 2 weeks to clear out of the system. Much sorting out, I awoke late at night saying I bet the Jell-O was NutraSweet. And after tracking the source, it was.
Now the most pains have subsided, but the headaches are still here. I get up in the morning and cry because I feel so bad.