@bbc_scotland: Arlene’s three-year-old son Zac received a liver transplant at five weeks old. As organ donation week begins, she is urging people to discuss the issue with their loved ones. Arlene is in touch with the mother of the donor – a little girl who had died. She said: "I think unless you experience it, it's quite hard to explain… you still have a really sad, overwhelming feeling for them too.” Via #BBCScotlandNews #organdonation #organdonationweek #transplant #BBCScotlandNews #BBCNews