cas526

My son has seizures. Fairly well controlled unless I forget a dose, which was the case yesterday. Did not realize it until it was time for the pm dose. I feel horrible but it was to late to do anything except to realize that he will have a seizure tonight. Well,he did a little earlier then what I expected because he usually has his seizures at night. This is the part that has be baffled. We were driving in the car and I hear a bell chiming. I checked the radio to see if it was turned on and it was not. The sound was coming from his side of the car. Then I looked over at him and he is holding his ear with his face distorted. I know this was the beginning of a seizure. My question is What was this bell ringing?