When you bake 100 cupcakes,quit your job,discover you are a genius, decorate them, organise 2 seperate art exhibits on the phone,get messages from religous statues, wash the floors and paint the kitchen,volunteer to sing at a charity event you organised,say yes to everything!!! and all before 10am.
When you become catatonic in your depressions and cannot remember anything at all so the voices in your head tell you to make up that lost time when you are well,hypomanic and then before you know it in a full blown mania!