The wall behind my belly button has been bothering me tonight

It’s not too bad, but I think that’s why as a kid I was told to not touch my belly button because there is a sensitive spot behind it. My kids are always doing something to my belly button. And that could be why it’s irritated. They have always been fascinated with mommy’s button but I don’t mind it. But I learned that you’re actually not supposed to touch your belly button. In my boyfriend‘s culture you’re not supposed to touch it either. That’s what he told me. it makes sense since it is connected to something sensitive. But he touches mine anyways just to be goofy I feel like. or maybe he just likes to see me crying in pain and holding my stomach from it😔😔