Yes, if you currently experience seizures, keep a diary. It doesn't have to be a major project -- just get a notebook, name it seizure diary and that's about all. I have such a notebook every page has a date. I call it my medical diary because along with seizures, I have migraines and year-round allergies. I draw pictures of what my head feels like when I have migraines (which side of head is effected, etc). When I have a seizure, I mark the time it occured, what I was doing when it happened & any feelings I experience (coldness, headaches, etc). I also put what type of seizure I had - whether it was pcs [partial-complex seizure]; ss [simple seizure] or ns [nocturnal seizure].
I have kept this type of log since I experienced my first seizure. I can definately say this log is the reason my neuro took my case seriously - he saw a pattern and ran the test needed to allow him to make the diagnos and presribed necessary medications to treat it.
I'm sure there's different types of medical logs to choose from on the internet, I prefer to keep it simple. A store bought notebook and a pen [i fill in the information myself].
Good luck and take care