Dear Marcia,
It must be difficult trying to cope with so many past emotional traumas.
As you mentioned both disorders, Bipolar and PTSD may co-occur. They may have common symptoms, such as depression, fluctuating mood and restlessness.
Also, medications treat symptoms, not diagnosis.
Medications may have more than one indication, those used to treat bipolar may also help to reduce impulsive behavior and reduce anxiety.
Discuss your concerns with your psychiatrist and therapist. If thet are not cooperating, perhaps you need a second professional opinion.
Best Wishes,
HFHS M.D.-SW