If I were you, I'd call her Psychiatrist. He/she may not be able to give you any information, (due to laws regarding confidentiality) but you can certainly tell them what you are seeing, and they can call her to check in and schedule an appointment to readjust doses. They already have her medical history -- have her as a patient and know what meds she is on.
This should be your first step. New patient appointments can be weeks out...
After that, depending on the outcome, we can discuss getting her ongoing care.