I never got tested BUT i study neuropsychology (beside my job) and I can see that I am for sure, at least ADD not automatically hyperactive though (except if you considerate that having a full time job + a full time study + willing to have a full time social life is hyperactivity which might be the case in deed. But I can sit still on a chair too anyway)
Either people find my ADD side very funny, charming and cool or they just find I am not seirous and not reliable. I can't help but I forget anything anywhere and I am complelty unable to keep an agenda (except my professionnal one).
I had issues in a former job with co-workers because i regurlarly forgot things like shutting off the heater after going from work (they didn't have an automatic one! Shit!). They just considered me as unreliable and not serious only for that reason. And told me "if you are not able to take care of the heater, how can you take care of the patients!" (I never heard such a bullshit in my life!!). I think that co-workers were ISTJs.