Hi OP. I second going to see a doctor. If there's a selection at your practice is it possible to ask if any of them have experience of TN?
I was dx 2 years ago. Like Medusa, I also had a tooth removed thinking it was dental pain when it wasn't.
If I took paracetamol or ibuprofen it had no effect. Zero. If your pain is dampened down by them then it's possibly time to start thinking about other causes of pain as they don't help with nerve pain.
If I took strong co codamol (in sympathy when I cried at the thought of suffering with the pain while they got me a liver funtion test before being able to start the carbamazepine) I still had the horrible pain, just cared less about it, iyswim.
I was able to see a GP who had experience of TN. He prescribed the right meds (carbamazepine is the gold standard and really should be the first thing that you are prescribed with. THe NICE advice for GPs online lists this and could be useful to take a print out of with you if they aren't keen to get you onto something that can help). He also set up a neurology appt. I wasn't able to stay on the carbamazepine, because it made me sick, dizzy and gave me horrible twitches. Even with the gabapentin that I can tolerate, I have shitty side effects I didn't have to deal with, but I trade that in for the amount of relief from the pain I get.
I had an MRI to look for MS along with blood tests for other systemic causes, which sounds like it could be useful for you if you have other symptoms that aren't just TN. They found no specific lesions, but did find white patches on my scans. They put them down to age related causes, but I did find a link to migraines with auras when I looked online, which is something I used to have. I've since come off the combined pill as (in the GPs words) 'In light of your migraines and your MRI scan, we don't want you having a stroke now, do we?'
If it is TN and it's not manageable by meds then there is an operation. I was referred to a neuro surgeon, but as my meds work quite well, I won't be a candidate for surgery - nor do I want it.
You have my sympathies, OP. If you want to PM me, feel free.