Does Dilantin Withdrawal Causes Numbness And Tingling Sensation On Left Side Of Body?

yes please.. my son has been on dilantin 100 mg tabs for a seizure he had jan 17 2015.. his ct scan and eeg were normal.. he is being tapered off the dilantin.. he only had the 1 seizure.. it was due to a antibiotic he was prescribed for a sinus infection.. he has experienced a numbness and tingling on his left side of his body that starts in his left leg sand creeps up his body to his face.. what could be causing this.. we are worried that it could b a stroke ... please advise.. thank you so much