Question

I once had simple depression and was misdiagnosed as bipolar disorder. I have always worked full time without handicap and have done well which I and my dr mistakenly thought it was because I was medication compliant. I finally figured out that I never had this and have been symptom and medication free for three years. I never really had classic bipolar symptoms. I still continue to work full time and have had two doctors verify the misdiagnosis. As a psych nurse, I saw a lot of this and left the field. Because of the social stigma and having a professional license, is this information discoverable, my med records I mean, that have a fictitional diagnosis in them? Also, because it was a mis diagnosis, could these records be destroyed somehow as to not allow insurance companies and employers find out about that which was never true. It sounds far fetched, but I know what is true. I witnessed many others being misdiagnosed in my work as a nurse. Are insurance co's cross referenced?