I see no similarity of 'aspertame disease' with the experiences we have had with singulair. If you've lived it, you know it is unmistakable, singulair is the culprit. My daughter has had aspertame before & after her singulair nightmare & never had a problem. Singulair turned her into a monster. No singulair, no monster. If it quacks like a duck, it's a duck. Singulair is poison.