Ive had a liver transplant last November. I was diagnosed with a problem in October of 2012. I was told it was alcohol related but similarly to you i didnt drink. Chirrosis was apparent and the medical team were unsure as to why i had it. Tests were carried out over the following 18 months. Eventually it was discovered through specialist test that i had Haemochromatosis. More commonly described as a blood disorder(mainly an overload of iron in my body). This was and had been for a considerable time, attacking my organs with my liver taking the most damage. It is usually an inherited disorder without your parents being aware they maybe carrying a defective gene each that has combined in you having both genes causing the haemochromatosis. It is treatable by phlebotomy(letting of blood, ie: drawing off of blood regularly, much like blood donors would give a pint of blood occasionally, only a person with this disorder, would let blood in the same way but
ced with cirrhosis to save my liver(i was 52 yrs old then) and had proably been with the disease for many years without knowing. A specific blood test has to be carried out as a standard blood test for liver function etc, will not detect it. I had a biopsy to back up test results and verify Haemochromatosis. Sorry its long winded, its difficult to explain in more simple terms. It is only one suggestion, and try not to worry as it may well be something far less dramatic. I have purely given my experience and it may be a test the doctor has not thought of or suggested yet. I wish you well.