I totally agree that ADD or ADHD's symptoms overlap with other disorders such as bipolar. Sometimes the ADD's cognition appears much like mania or hypomania in bipolar. Many docs are not well versed in ADHD and throw out bipolar too often. One pdoc I read quoted bipolar as a wastebasket diagnosis.

I understand the mix up because I, too was diagnosed with bipolar and the dx. was withdrawn from me a year ago. It is now being seen as ADHD missed from childhood. Psychiatry is not an exact science. I am so leery of the mental health system in general. The FDA is a crock, by the way. It really doesn't look out for the patient like we think. It looks out for big pharma.