Its really hard for any of us to be able to know what is going on. Talk to your parents and have them get you into your doctor and explain to him how you are feeling and hopefully they will be able to help you find out why you are feeling strange. It could be anxiety but its important to make sure that its nothing medical as well.
This may be anxiety from enduring the epilepsy or fearing it may return. But know that you do outgrow it and that's what's happened with you. If you haven't spoken to your parents about this, now's the time. They may want you to see your doctor, and then address what is causing the anxiety. Talking to your parents is most important, they love you and want to know if you're not feeling 100%. They can get you any help you may need so you can get rid of these feelings. Everything will be okay, but talk to your parents about how you are feeling. Take care!