Helen you should contact your family doctor. I know there are hormones that can help you grow a couple of inches.
Just let me tell you a story. We had a guy in the the flight school that was very short. He had also to use cushions on the seat. We all thought that no airline would hire him.
He got hired by an airline flying 737. He was actually one of the firsts that got hired from our class.
Anyway good luck to you,