I, too, am a female who is color blind. All the males in my family are red/green color blind. The females are orange/brown color blind. I flunked the test (again :D ) just last week. (It is a little more sophisticated than the red/green test).
Your eye doctor is ill-informed. Red/green is the dominate color blind gene but orange/brown is the recessive, if a family gene pool has both genes than any variation will show up.
I also have friends check my colors, but I see tones better than they do and values better. Color blindness is a very strong trait in Native American families.