Some friends at work who knew that I consumed massive quantities of Diet Coke on a daily (hourly) basis told me about a TV news story they saw re: the dangers of Aspartame. It got me thinking “maybe I ought to check this out.” I found your web site and was alarmed to read about many symptoms I’d been experiencing, including (from your list): headaches, change in mood quality or level, diarrhea, memory loss, fatigue, sleep problems, change in sensation (numbness, tingling), change in activity level, joint and bone pain, eye irritation, change in body weight, nocturnal, change in thirst or water intake, and sinus problems.
Three weeks ago I quit DC cold turkey, and lo and behold, many of the above symptoms are clearing up, especially the numbness and tingling that was concerning me the most. For several months, my left hand tingled, especially in the morning, often lasting all day. I was also experiencing numbness in my legs when sitting for any length of time.
These symptoms so concerned me that I visited my physician to obtain his opinion. He told me to get used to it, that I’m just getting older (I’m 39). I’m relieved to tell you that after quitting the use of Aspartame, I’m feeling younger! The tingling and numbness are gone. Other symptoms seem to be clearing up as well!