GASLIGHTING

I'd never heared the word, then when I did, I never knew what it meant. There is a post on the main P board. 22 years on I'm still learning. It is a deliberate act or words done/said to make you question your sanity. Xp did it and now I see so clearly that Pson does it. Knowledge is power. It happened only yesterday. My daughter told me that she had told him that I had received his letter. Nothing odd there, but, 2 hours later, my son texted me asking, did I get his letter? Why?..............to confuse things, mainly me. But now I can see what's happening.............I know, I'm NOT crazy, it's just another one of his many, many games he plays.