Almost every time I see my DM she comments on my weight. Never in a nasty way, but usually something like, "you're looking slim" or "have you lost weight?". I haven't lost weight, nor am I overweight or trying to lose weight, I'm a perfectly average size 12 and I've been this size for probably about 20 years. I don't really know why my mum seems to want to always talk about it, because she never gets much of a response from me, but it's starting to grate a bit, particularly as my kids are older now so will notice what she says. I don't talk about my weight, or other people's in general, and tbh I think to do so is a bit rude. AIBU to ask her to stop, and how do I do this in a polite way? I have mentioned things in the past, like how I don't want to discuss weightloss and dieting around my DD, and at the time she did agree, but she still does it. I think it's something she's done all her life, and she probably does it with all her friends too, I certainly remembers lots of talk of that sort of thing as I was growing up. How do I approach this effectively and diplomatically?