10-15% of people with BP are real rapid cyclers.

Many people consider rapid cycling when in fact a person hasn't spent a month or so at baseline. I spend a year all over the map my Pdoc said this isn't rapid cycling we haven't found your baseline yet ! which make sense . How can you compare stable versus episodes when you don't know stable ?

Rapid cycling is considered 4 distinct 2 + week or more episodes in a revolving 12 month period.