yes this can be a seizure
activity. i would like to know if the decision of stopping drugs were taken by your pediatrician
or was it your decision. normally we don't stop anti-epileptics for at least two years of seizure free period. so it seems you had stopped the drug prematurely as you said your child had seizures last year only.
i would advice you to contact your pediatrician as soon as possible to get an evaluation that may require a repeat EEG and get the drug restarted. and please don't change any medicine or schedule of medications without any medical advice
thank you for the query
Dr. Amit Kumar