D.T.'s stands for Delirium tremens, the condition which may arise when a heavy drinker withdraws abruptly from alcohol.
Symptoms of Delirium tremens include visual and tactile hallucinations, confusion, agitation, diarrhoea, fever, rapid heart rate and raised blood pressure.
Cirrhosis of the liver is the replacement of healthy liver tissue by lumpy scar and connective tissue, a process which leads eventually to the loss of liver function.
It may be caused by a range of factors, one of which is alcoholism.