Several years ago, I decided I had to lose weight so I joined Weight Watchers. I used a lot of their products as well as diet drinks with Aspartame. After about 4 months, I had lost 40 pounds and was so proud of myself. Then I began feeling really tired, loss of appetite and such. My thyroid has increased in size by about 150%. The doctor gave me some antibiotics and told me to come back in 6 weeks to do another check. If the thyroid was not back to normal, we would have to do a lot more tests and scans. I went home and, other than the antibiotics, changed nothing except quitting using diet products. When I went back, my thyroid was completely normal and I have never had the problem again. Of course, I won’t touch any food with Aspartame and have it listed on my medical records as being an allergen for me. I have never had another problem with my thyroid since, about 5 years now. My daughter is also allergic to it. It gives her migraines. Just wanted to pass this along to everyone. STAY AWAY FROM ASPARTAME. sue_polson@yahoo.com