It's so hard, but just hold on tight, you'll find a med that helps manage your pain. I've been passed around doctors too, and it's the worst. It's nothing wrong with you -- it's just a bunch of idiot doctors who are afraid to stand up and make a decision. Just because they are bad at their job, don't let make you feel less validated. Your pain is real, and you WILL find someone to help you.
Friday is not that far away. Just hold on. Make the time pass by researching all you can about TN/ATN so that you can get the fullest out of your doctor appt. If you are getting electric shocks, make sure you ask for Tegretol. If you have a constant, aching pain, make sure you ask for Amitriptyline. It's likely you might need both.
Don't start two new meds at once. You need to know which one is working, if you don't, you could be on meds you don't need, and getting unnecessary side effects. Most of these meds take a few weeks to start working. Your doctor might push for Lyrica (expensive) or Neurontin. Those are good meds too. Again, one at a time.
I would also ask for Klonopin. It's a benzo, but it also has anti-convulsant properties. It really does help with the pain, but it also calms down your anxiety - anxiety is not good for the pain. You really need a med in this category. (valium, xanax, etc, but preferable Klonopin)
If you feel like you're getting doctor referrals and you don't understand why, you need to ask. They are probably referring you to a neurosurgeon because he's most likely going to be the one that has the most experience with TN/ATN.
If you go to the ER, ask them for the meds discussed above - those are the meds that are going to really help your pain. I do support taking opiates, so don't be afraid to use them for pain. Who cares if they think you're a drug seeker? You're in distress and you need help. I personally never go to the ER, because like you said, why sit around for three hours when they can't even help you, not to mention the cost. If you have an Urgent Care, that might be a cheaper option.
You're strong and you can do this. I know it's scary and I know it's hard. Friday is almost here. Educate yourself to the fullest so that you can have the most beneficial appt possible. There is a tab at the top of the page called "face pain info" - that is a great place to start.
And finally, remember that you are not alone. This is not a permanent situation. It will get better once you're on the right meds. We're all here for you. Please message me if you need to talk.