I have been on the same anticonvulsant for more than 25 years

My seizures have changed over the 31 years I've been diagnosed. As a child I had only simple partials, and now mostly complex partials as I've gotten older. The more meds I have the less seizures I have unless it's around my cycle (sorry tmi). Then, they cluster. If I stopped taking my meds this morning I'd have a grand mal by tomorrow morning. It really depends on the person.

My seizures started in 1960, after a bout of spinal meningitis, which doctors predicted would end my life or leave me in a vegetative state. It didn't, obviously. I was put on meds then, phenobarb and dilantin. I was switched to mysoline and dilantin in my teens, and there was a noticeable difference. I continue with those same medications. What was a once a month thing, became unusual, then rare, as I matured. Pregnancy did affect it, but the advice I got was that they could not predict how it would affect a person, but I think that was the last grand mal seizure I had. I know new meds are out there, but I am not interested in changing what is not broken! Medical control changed my life.

They could change depends on the medication, more likely be the frequency and severity than actual type you have as one wouldn't go from grand mal to absence seizures as it depends on area of the brain that's effected

Mine seem to have changed to simple partial since starting a new med a year ago. They used to be complex partial. They are much more mild now and much less often.