Welcome Nana

please know you are not alone in this. I too suffer from Atypical TN.
The only drug I have been able to tolerate and which gives me any degree of relief that I've found is Clonazepam (Klonopin in the USA). This was after failing through a series of anti convulsants (I could not tolerate the side effects).
I'm sure some of the veterans here can give you better advise. I'm still a newbie to all of this myself!