My partner's daughter is in her 40s, while I'm 64. Last time she visited, (staying overnight with 2 children), I was working full time on a demanding contract. I came in from work, flopped in a chair and then we had a short conversation about my aching legs. She said "Aww, bless" and I suddenly felt I had aged 20 years. It's not the first time she has made the comment and I find it horribly patronising, but she genuinely doesn't mean it that way. It's just a thing she says without thinking, so I bite my tongue.