Hi,I m worried about my sister,she lives in Spain but I often speak with her,she has said she has one leg fatter than the other at the moment and has terrible back ache and often complains of bad stomach pains,she has had diarrhoea for as long as I can remember,I m going back 5/6years,I know she has a problem with drinking but she would never admit to that,I m worried for her as I am here and can t physically do anything to help her,my mum has tried to get her to see a doctor but she flatly refuses,do you have any idea what could be wrong? Thankyou