Seizer disorder spelling and math is hard for me names of people from the past are hard to re remember is that common?

Possibly: Memory difficulties are a common side effect of some anticonvulsants. This may be a dose related problem or medication related as not all anticonvulsants exhibit this effect. I would check with your physician whether the medication you are taking is associated with memory problems. Sometimes changing the dose may help other times you need different medication. Make sure you get adequate sleep.