Take this with a grain of aspartame, but I was also very gung ho on artificial sweetners and swept all the fear mongering in with gluten and msg. Aka bullshit. For years, I was drinking tons of diet soda. Maybe 2L per day of diet root beer.

For whatever reason, 4 years ago, I became super sensitive to aspartame. It would make me hyperalert like a more subtle version of caffeine. I had insmonia for random days. It took me forever to isolate it to aspartame, since I've never had a problem, nor suspected there could even be a problem. I don't have pku but it is what it is. Sucralose, stevia, regular sugar still fine. Bodies are weird. I still believe in science but the older I get, the more I give credence that in some people things just work differently. I don't just jump to the conclusion that they're making something up just because official scienctific papers say it's 99.999% safe.