U mad? Personality Type, MBTI

U mad? personality type is ENTP, and I am definitely that. I have a huge "vision" of the future and an imagination that is often wilder than I can contain. My best friend, whom I have not known longer than a year and a half, is ENTP as well. I was told that she has a different name and goes by something different, but basically the same person. I guess if we only had one ENTP in the world, we could get along just fine. Well, according to my coworkers, I am a crazy, nutty "vision" person who has no common sense. I have been told that I don't know what I'm talking about half the time. Other times, my coworkers have been amazed at the things I come up with. One of them said that sometimes he can't be sure if I have any common sense. I guess it all depends on the day, but I really don't think this is true. What do you think about ENTP?