A misunderstanding is a failure to understand something properly, for example a situation or a person's remarks. Tell your midwife what you want so she can make a note of it and avoid misunderstandings
putting the wrong interpretation on; "his misinterpretation of the question caused his error"; "there was no mistaking her meaning"
an understanding of something that is not correct; "he wasn't going to admit his mistake"; "make no mistake about his intentions"; "there must be some misunderstanding--I don't have a sister"
You can refer to a disagreement or slight quarrel as a misunderstanding. a little misunderstanding with the police