We had this as part of the Qualitative Assessment both of my kids did. In that questionnaire I think it came out with a scale of 1-5 for each OE. It was part of the QA because overexcitabilities are one part of the definition of giftedness the assessor was using. Makes sense to me - my personal definition of giftedness would almost always include intellectual OE, for example.
I wouldn't worry about it as a diagnosis, except to realize other kids might react differently from your DS in these areas.
