An epileptic seizure, especially if you've never had one, will guarentee you a night in the hospital.
Just go to youtube to see what a seizure looks like. Then go to a busy street, fall down and an ambulance will surely be called.
Don't overdo it. Doctors get nervous if seizures last longer than 5 minutes or are very wild.
But if you stay under 5 minutes, they'll probably only do an MRI scan and keep you for a night.
Say that you've been under a lot of pressure lately and that you haven't been sleeping well.
If no more seizures occur and there have been no seizures in your past,
they'll probably release you the next day with an appointment with a Neurologist a few weeks later.
Be careful though, in some countries your drivers license is taken away from you after just one attack.
And there could be more practical consequences like that later on, so check first!
I find it hard to give you this advice because I've been there and done that many times.
I have epilepsy and it's not a very fun disease. The thought of faking it makes me feel uncomfortable.
So I really hope/trust you've got good reasons if you decide to use this method.