By the symptoms you describe and the type of medications you're on, I assume you're talking about auras related to seizures rather than migraines. Catamenial epilepsy is a term that describes seizure disorders related to the menstrual cycle. There are studies in the medical literature describing the beneficial effects of progesterone given in the ovulatory phase of menses (2weeks before the actual period) on seizure reduction, especially if the woman has insufficient levels of progesterone during this time. The question of medication adjustment of both the antiseizure drug and need for hormonal replacement in your case needs to be carefully evaluated by your neurologist and GYN. There are risks in taking just progesterone postmenopausally that should be discussed with your GYN. But it's possible, depending on the actual nature of your seizures, or if they're just auras, that you may be able to wean down off the medications now after your surgery. Talk to your docs about your concerns, and bring up the possibility of progesterone and see what they say. GOod luck.