Suggest Treatment For Severe Headaches And Drowsiness

I have been having several abnormal headaches in the last couple of months, during my headaches fogginess, drowsiness face tingling, pressure under my eyes and tingling in eyes, chest pain sometimes rapid pulse, shaky eyevision/ dizziness occurs. These headaches could last for seconds. And either be done or happen multiples a day, or it could sometimes last the whole day. There was a 3 week period when these headaches first started that rhe headaches lasted all day every day. In the last 6 months i have had 8/9 recognized seizures most of them small seizures with the exception of two pretty big seizures. And since the seizures i have beem on anti seizure meds. On dilantin for the first little while and carbazapine 2 months ago. Could these headaches be seizure related ? Could they be side affects from the drugs? What could be causing the headaches? What are the possible causes of the seizures?