Having been diagnosed this past June at the age of 54, I think I may be extremely mild. I went bipolar, no thanks to psychiatry. A LOT of mental illness can be resolved without resorting to medication. CBT, DBT and ABA may take longer and are more expensive, but have better results in the long run. It's just because Big PHARMA and the insurance companies are pretty much in cahoots with each other that the public is in the poor shape they are in mentally. If you think the Federal Government is here to protect us, think again! The FDA has gotten so corrupt, no thanks to all the back room dealing that goes on, we may never be able find out what really goes on. Read Robert Whitaker's blog, http://www.psychologytoday.com/blog/mad-in-america, for the story.
I speak from experience, since Viibryd pretty much put me in the state I'm currently in.