Worried about my nan

OK so i am really worried about my nan, i know that she is sick though she wont say just how sick, Nan is the type of person that would do anything for anyone with out asking for anyone in return, also is always busy helping out others,
She had a whole heap of tests done at the doctors, and they have called her back as by the looks of it something has shown up,
i REALLY hope that there is nothing wrong and they are just calling her back to say one of her vitamin levels are low