What is gaslighting? And how do you know if it's happening to you? - NBC News

Psychologists use the term “gaslighting” to refer to a specific type of manipulation where the manipulator is trying to get someone else (or a group of people) to question their own reality, memory or perceptions. And it’s always a serious problem, according to psychologists.....
https://www.nbcnews.com/better/health/what-gaslighting-how-do-you-know-if-it-s-happening-ncna890866