I've noticed a few odd things with MIL. She's only 69. High blood pressure, osteoarthritis but otherwise fair health.
These things are really small, AIBU?
-Asked me what I was doing, I told her, she asked again 1 minute later, then again
-told me she'd put some mail in the post but I found it in her kitchen, not posted
-she went to see the Barbie film and she told me she didn't understand it, that it was for little children
-started talking about an old neighbour she had fallen out with years ago, really bitterly, like it was happening now, with surprising venom
Not sure whether to worry DH by discussing it with him?