I can drink 1 "normal' fizzy drink, sometimes not managing to finish it, yet, after a diet/ low sugar drink I feel thirsty? I gather its something to do with the brain not getting the ( sugar hit?).Went to Pizza Hut at the weekend and ordered a regular bottle of pepsi. I couldn't work out why it tasted like a diet drink until i googled and found out they've replaced some of the sugar with sweeteners!! https://metro.co.uk/2023/03/29/does-pepsi-taste-different-now-brands-recipe-change-upsets-customers-18521177/