Just FWIWI also used to drink at least 64 oz of Diet Coke a day for over 10 years.I gave up Aspartame & Nutrasweet completely about 3 months after I started having severe BFS symptoms.I've been off Nutrasweet for over a year now but I never noticed any reduction in symptoms as a result of giving it up.I did get symptom relief with hypnosis but that's a different thread but I guess I was kind of naively hoping that once I gave up Nutrasweet that all my symptoms would just make magically go away in a month or two (once the Nutrasweet was out of my body)Nonetheless, I'm glad I gave it up & have no intention of starting up again.