I should know this answer but I want conformation one way or another. Can stress trigger a epileptic seizure?

Yes. Physical and emotional stress can indeed be seizure triggers in some epileptics. This is part of the reason staying healthy and getting plenty of rest is so important. Here's a web page on seizure triggers. http://www.epilepsyfoundation.org/aboutepilepsy/diagnosis/seizureprovokingtriggers.cfm.
If you have epilepsy. Stress won't give you epilepsy. But if you have epilepsy, stress does often make it easier to have a seizure. In fact, I have yet to find a medical problem that gets better with stress!