want help

please, if anyone out there knows anything. . . i am 46, struggled with PMS most of my life.  terrible cramping, mood, etc.  terrible pregnancy mood into terrible labor then c-sections, then post part. depresn.  my period has been dysfunctional to say the least.  at times i need more sleep then not.  3 -4 am wake up time is normal then i usually go back.  my problem is this.  it now seems that i have perpetual PMS and i don't mean the irritated, aggravated kind.  i mean the depression with anxiety vice versa.  i am always sad-i can cry at the drop of a hat.  i feel isolated.  my oldest is going to college next sept. and my youngest is 12.  the economy has affected my husbands business and times, needless to say, are hard.  i am scared i am bi-polar 2 since none of the seratonin drugs work-they make me anxious. wellbutrin i thought i was going to kill myself. i wish someone could tell me what will help and that this definitly is hormones.   doc says it is perimenopause(i am apparently in the thrust of it) and gave me birth control pill "YAZ".  i cried teriibly for 7 days straight!!  help, if anyone can.