Most people do not understand the term "bipolar" and find it scary and intimidating. It does not mean a person is "crazy". It involves the chemical enviroment of the brain; proved medically with MRI and other brain xrays; and tends to run in families (i.e.genetic).
I am Bipolar. That means I am sad, in general, and stress can throw me into a depression or seclusion; so I must manage my stress. Mood swings are the worst because what seems like a great idea one day may be the worst another day. Friends come and go; usually due to the drama in most Bipolar's lives. We are complicated; "simple" does not like complicated !
Medication works for most people. However, for some it makes one feel as they are in a "fog" 24/7 and they are zombie like. Better to feel "alive" and handle it just as a Diabetic would control their condition.
I have learned never to tell anyone for one reason: they will not take you seriously in any endeavor you pursue and be afraid of upsetting you (so they lie telling you what they think is safe to tell you). Wrong.
It's very complicated, yet more common than people realize. It should NOT be confused with "psychotic"; which is imagining things or seeing things unreal. It is most simply put as feeling extreme ups and downs...more than others.
Abe Lincoln, Winston Churchill, Patty Duke and many creative people were, are Bipolar. Some self-medicate with drugs/alcohol: sound familiar in Hollywood?