From divergentcoachkelly on Threads:

ADDers often have a persistent sense of being in trouble, even when we've done nothing wrong. It's a sense that somehow we're fucking up without knowing how.

This can happen for a lot of reasons, but it commonly stems from growing up feeling like we're always falling short, struggling to keep up and breaking promises to ourselves and others. When we receive these messages when we're young, we grow up to be adults who often feel inadequate and like we're doing something wrong.