It is very stressfull to not know what exactly is going on and fear having your license taken. The flip side of that, is the thought of having a seizure while driving/ SOmeone I have talked to on other forums has shows his car's picture when he totalled a car in a seizure!! His wife and baby were in the car with them......He could have killed them or someone else......
I do not know what kind of seizures you had, but it is so important to get proper treatment. See if there is any way your work can make allowances for a short time......maybe find someone to help you with driving with this medical condition?
I hope your appointment goes well, you DO need to find out what is going on.........