I would say most defiantly the accident made t.n. worse.. it aggravated your pre existing condition.... you should be able to get compensated for this ..(if you are not at fault for accident)
I got my t.n. and a.d. from auto accident.
It sounds like your nerve on that side has been aggravated by the accident and needs time to calm down.. if it dose not settle down in a couple (2-3) months..it could be permanent I would most for sure visit a neuro doc and or pain management doctor. a.d. is numb feeling along with tight tugging and pain constant .. a.d. that is when the nerve is snapped or damaged permanently . I have it. a few of us here have it ,
has any of your docs mentioned a.d.. anesthesia dolorosa ?????
I hope the nerve just clams down and your pain lessens.
keep us updated... let us know what neuro or pain doc says .we care and will help any way we can with info support and just being here to listen. your not alone thats for sure.

PEACE
BMW