IMO General Prac. tell way too many ppl they have ADD when they do not.
To really get a proper diagnoisis see a psy or Neor psy . They have been trained in this field and can provide the proper test to adequately diagnosis you.
Most people do have ADD traits, but they are often symptoms of stress or just of times in their life and will not always be present. ADD is something that will be a life time disorder.
You don't get your car fixed by your hairdresser.. So don't get you brain looked at by your GP