My most troubling symptoms before the seizure were impaired cognition and memory issues. I also had no appetite and had lost 50 lbs in 2 years. I've had other neurological issues come and go (nerve pain). My neurologist does not say Covid definitely caused my seizure but is aware it is a possibility. A number of studies show an increased risk of seizures and Epilepsy in people who have had Covid. Please see articles below for more info.
https://www.webmd.com/covid/news/20221119/covid-19-raises-risk-of-seizures-epilepsy
https://www.ccjm.org/page/aan-2021/covid-seizures-epilepsy