I had a seizure for the first time in my life. i have no prior history in my family of seizures or epilepsy. i had a monster two hours before going to bed?

Was it a witnessed seizure, focal or generalized seizure? It is abnormal if a seizure activity can be induced by drinking a can of monster. You should see a neurologist as soon as possible.

If you did experience a true epileptic seizure, it is vital to have this fully evaluated and likely preventatively treated, as risk of a second is about 60%. See a neurologist. Avoid driving, activities at heights, use of power equipment, taking a bath or swimming alone. In your state, the Motor Vehicle Dept will require notification.