I am 39 and have been diagnosed with a seizure disorder.........

I am new to this website. I am very grateful that I found it. Reading everyone's questions, concerns and feelings has really helped me understand this disorder. I am still learning. I had my first seizure on January 16th, 2007 while I was driving my brand new car. I remember that my eye sight became blurry and had trouble focusing. The next thing I remember I was in an ambulance going to the hospital. I had a CT and everything came back normal. At that time the doctor did not feel I needed to start medication. The second seizure I had was on Feb. 21st, 2007 it was in the middle of Walmart. There was a employee near by and noticed I was falling and she helped me onto the ground. I was lucky because she was an EMT for 5 years. She said I lost consciousness, my body became stiff, eyes rolling, stared drooling and had problems breathing. They called the ambulance and took me to the hospital. This time the doctor started medication. He stared me on dilantin. I am on 350 mg. My side effects are forgetting what I am saying, where I placed items, find the right word and being very tired. I was wondering if these side effects ever subside? The doctor did a lot of blood work to rule out MS, stroke, blood clots, Dymling disease, etc. I had a 48 hour EEG and that came back normal. I also had a spinal tap and that too came back normal. I did have an MRI. They did find brain lesions all over my brain. It's not in one specific area so the doctor is unable to tell why they are there, the cause, or how long they were there. The doctor feels that maybe I am having these seizures because of my premature birth and illness after birth. My mom had me at 31 weeks. I only weighted 2 pounds and I was in the hospital for 90 days after birth. During that time I coded 6 times ( stop breathing ). I have never had any other problems because of being born early except...learning problems. I grew up, graduated from HS and went to college with out any problems. The doctor said they may never know the reason I have had two seizures....???? Has anyone else here experienced the same thing? Any information would be great. If this thread sounds confusing or my spelling skills are not the greatest....I am sorry....side effects of the Medication or seizure? Thank you for all of your help, ideas or suggesitons. Melissa