My mom and I have talked about that kind of thing and she knows to call me directly if someone ever tries to say something happened to me. She’s not stupid, but maybe just not growing up with people constantly trying to scam her at every turn hasn’t prepared her for the depths these assholes will sink to, and they’ve gotten so much more sophisticated.
Maybe she’s poisoning you just a tiny bit at a time. Kidding, but have you guys eaten a meal at home together without you feeling sick?