Hi there I am not an expert on trigeminal neuralgia but I have just had mvd for geniculate neuralgia which I'd similar just a different branch of nerves involved. Certainly from your description you sound like you sadly have the signs of tn. I don't know why so few people are replying to posts but I just wanted you to know you are not alone and I'll be thinking of you when you have your appointment. Please let us know how you get on and what way forward you have. Read through all the posts you can cos the advice on meds is second to none.
Stay strong and positive if you need to talk feel free to pm me