I’ve been drinking excessive amounts of diet coke for 20 years and this has never been my experience, and I know many others that have done the same and have never had these complaints. That is my anecdotal 2 cents. My feeling is that considering the number of people who are against fake sugar consumption and the number of studies done on beverages containing fake sugar, if there were a correlation, we’d have heard about it. But I have not researched this particular topic myself.