'Epileptiform transients such as spikes and sharp waves are the interictal marker of a patient with epilepsy and are the EEG signature of a seizure focus.'
transients means voltage or frequency on a eeg test. Interictal means period between seizures on an eeg test.
so i think there is a rare form of something inbetween your seizures. that is my guess by quickly studying epilepform spike.