Tingling in Fingers, back of head and sometimes feet?

Tingling in Fingers, back of head and sometimes feet? I have Petit Mal seizures that i have had for over a year now. I am taking Lamotrigine 100mg per day, which i have been taking for about a year. I have had tingling constantly in my fingers which i do not know if this is related to my Epilepsy but then i also click my fingers so i dont know whether its the nerves? i've also had the same tingling in the back of my head and i have recently experianced tingling in my feet? Does anyone know what this is? thanks :)