oh dear, I did think there was more to your post
finger clubbing is associated with CF
but then it is, like I said, with other illnesses and also can be an inherited finger shape (though unusual)
this is why the Dr would be very interested in her fingernails
does she have polyps up her nose ?
how old is she ?
what illness does your DH have ?
sorry, I am being nosy, no need to answer if you don't want to
tbh, googling is not likely to reassure you, just frighten you
you may be best (if you can...easier said, I know) to wait for the results of tests