That I can understand. It's when said with a tone that implies, "You're strange", that it gets to me. Curiosity or wanting to know for your own self re-assuring is fine, though I can't say that I've ever had that happen. For me it can be happy, like if I get a reply from the cuddle party, but most often it's restless/bored fidgeting, and occasionally it's because I've run out of spoons but have to do things anyway.