I had a blood test done to test my liver function as I have been taking large amounts of paracetamol over past 3 years following a stomach operation. I didn't need to take as much paracetamol as I have. Anway, went for blood test and now doctor has asked me for another test to check Gamma GT and B12 levels. HELP. What does this mean?? I am tired alot - I am panicking I have got liver damage. I've got a job interview on Monday, now I feel so sick and anxious. Anyone out there help me?? I am female, 38 years old. Any advice or similar experiences out there??? I feel weak with fear!!