“a person can also be both ADHD and bi-polar but it is not common.” I’m not sure what your doctor meant by common, but Dr. J. told one of his groups that he is seeing a huge increase in the number of people getting a legit diagnosis of both – another thing I learned from a lecture at the Mood Disorders Assocation is that women are most commonly diagnosed with bipolar during one of the three transitional phases of our lives – i.e. onset of menses, childbirth, midlife – this was true for me – got my diagnosis shortly after hitting perimenopause, several years after getting the ADHD diagnosis – another thing I learned from that lecture is that they now know postpartum depression is a red flag for bipolar – zsazsa as long as you’re feeling good on whatever meds you’re currently taking, that’s the important thing! 
P.S. lecture was from a doctor who is the go-to guy for bipolar at the University Health Network here in Toronto – the lecture was supposed to be about bipolar and ADHD – turned out to be about bipolar versus unipolar – yours truly was the ADHD expert in the room – Dr. Whatshisname was not impressed with my fielding all the questions from the crowd about ADHD – it was great