Can you have a seizure and not know?

Yes, it is possible to have a type of seizure known as a non-convulsive seizure or absence seizure without being aware of it. These types of seizures are characterized by brief lapses of consciousness or awareness and may not involve the convulsive movements typically associated with seizures. However, it's important to consult with a medical professional to determine the nature of any concerning symptoms or episodes to rule out any underlying neurological conditions.