My dad has had parkinson's for about 17 years now. For about 2 years now he has been having episodic seizure-like events and we are trying to figure out if it is part of the disease process, a medication side-effect, or perhaps a separate disease like epilepsy. As I've been looking around the internet, the closest description I have found that is like my dad's "seizure" was on an MS site. It looks like epilepsy and Parkinson's can co-exist, I'm not sure about Parkinson's and MS (are they mutually exclusive diseases?) Anyone have any ideas what my dad may be experiencing?