Hey OP. I'm very sorry to hear that you've had to deal with this. Seizures are by nature extremely scary, confusing and dangerous. For this reason, nobody could blame you for being concerned about it. The answer to your question is likely a simple one. As others have said, it's most likely a clear-cut case of Benzodiazepine Withdrawal-induced seizure. This is common and to a certain extent, expected in certain individuals depending on their dosages and frequency of use.
In the future, I don't think I need to tell you that you must be a little bit more careful in the future. While it can be an embarrassing experience, the correct thing to do when you run into this problem is to seek medical attention immediately. People have been withdrawing from sedatives for most of recorded history and probably before that. The point is that the protocol for dealing with withdrawal from sedative-hypnotic drugs, including Alcohol, Benzodiazepines and Barbiturates, is pretty standardized.
They will generally not allow you to reach the point where you will have a seizure and will medicate you with either Benzodiazepines or Barbiturates. So, like I said, it can be embarrassing, but doesn't this sound like a preferable course of action? I've done it, just to make things perfectly clear. I was not only medicated, I was comfortable throughout what ended up being a 5 day detox from a heavy drinking habit.