"Although substance abuse is not considered a cause of bipolar disorder(manic depression), it can worsen the illness by interfering with recovery. Use of alcohol or tranquilizers may induce a more severe depressive phase."
when it says recovery it means your mornings (hangovers) from the night before
your "episodes" happen in the morning because when you are recovering from the alcohol it makes your depressive phase worse
if your saying drinking aint the cause because your problems happen in the morning your dead wrong its actually the exact reason
why your episodes happen in the morning
from http://psychcentral.com/lib/2007/the-causes-of-bipolar-disorder-manic-depression/
/no dr.