Aspartame gives me abdominal pain near my gall bladder or liver. I had severe pain and went to many Doctors, had all kinds of test. Never could find anything wrong but I noticed every time I decided to go on a diet and started back on diet soda my pain would return. The stuff scares me..I have heard so much negative stuff about it and a few back I started hearing about an increase in First Gulf War vets coming down with ALS (Lou Gehrigs) READ THIS! if it doesn't scare you off the stuff nothing will.
http://www.wnho.net/aspartameandgulfwar.htm
When my son went to Iraq I warned him to stay away from the sugar free drinks.