 [ Symptoms ] are hives contagious [ Disease ] i do not have enough information to be able to answer that question i do not know the type of seizures you are having and of course i have no way of examining you to determine if your one sided headaches have anything to do with this condition there are hundreds of different types of headaches you would need to consult your medical provider    someone who is familiar with you and your case and someone that has the ability to examine you