Vin,
I can't help you but I have an opposite situation. Some of the nerve ends, somehow rerouted themselves from the tongue area that was removed to between two of my molars. This makes it very painful to floss because when I hit the spot, it feels like someone is sticking my tongue with a pick. It is still that way 4 years after the surgery and I have resigned to living with it as a minor inconvenience.
My point is that nerves are not very predicitable at least in my experience with this surgery on the tongue. What she is experiencing may be permanent; it may not be. Only time will tell.
Jim