Denny Lou . I SERIOUSLY advise you to use local oestrogen at the very least , I no someone bedridden from it all shrivelling up / thinning / bleeding not to be messed with .
When it all eventually shrivels up , it can include the clitoral hood , and the outer labia a haven for infection.
Gabapentin I am afraid will dry the area further you should use it along side local oestrogen.
The pudendal nerve is probably is what is being aggravated, by the atrophy as it finishes at the clitorise, goes through the vagina/ rectum/ vulva vagina , anus and butt cheeks.