Food with no sugar tastes sugary?

i had lunch at my favorite mexican food resturant with my boyfriend. for some reason, everything was tasting like it had some amount of sugar in it, the chips tasted like they had sugar on them, not salt, and my guacamole tasted sugary, actually my whole burrito tasted kinda sugary, my boyfriend had the chips and tried some of the chips, he didn't taste anything sugary. am i just losing my mind?