Can you suffer from epilepsy as well as suffer from panic disorder?

Yes. Many patients who have epilepsy have panic attacks and other spells that are not epileptic. It is traumatic to have true seizures; that makes people more anxious about benign sensations that normal people ignore. It is sometimes hard to be sure if a spell is anxiety or epilepsy, but this needs to be carefully decided because one doesn't want to take more anti-seizure medication for panic.