Poppy, had to tell this belly button story:
After having a hernia op, my belly button all but disappeared. The first time my grandie saw me naked, she was horrified that I didn't have a belly button - and instantly pulled up her shirt to check on hers. With great relief, she reported, "It's okay, mine's still there!"
I always smile when I think of her frantically checking to make sure her belly button was okay.
My belly button has returned, a bit different but at least I don't look an alien any more.