False memories

I am sincerely questioning whether things that I think happened during my own childhood are real. And the reason is because my own children have both shared completely false memories with me. They have both said things to me like "oh, you told me this blah blah blah" something that I would NEVER say, as in I'm 50 Years old and I know myself pretty damn well and that's not something I would say. But also things like my daughter told me she associates visiting these certain family members with arguments going on. She's not completely off. There were arguments with those family members, but in a completely different state. But she says NO, it happened there. Ummmm, I would know, but she insists. It is causing me to question my own memories. Has this happened to you?