Bipolar 1 and 2
Bipolar I and bipolar II, In the first, manic phases are more severe, and in the second, depressive phases are more severe.
There is also cyclothymia
which is a low grade version of bipolar disorder
in general, where mood swings
are not as severe in either direction, manic or depressive. Different people exhibit different symptoms, yes. No two bipolar sufferers are alike.