Hi thanks for contacting HCM... Here your father might have cirrhosis as having ascites . . If splenomegaly associated then portal hypertension can be there by cirrhosis... For headache paracetamol can be given .But not excessively... Cirrhosis needs to be treated .If portal hypertension more beta blocker can given. For ascites diuretic can be given.... Ultimate treatment is transplantation for cirrhosis... Take low salt diet. In morning take grined spinach and carrot juice.... If your father having associated sleep disturbance, behavioural abnormality serum ammonia estimation done to rule out encephalopathy.... Hope your concern solved. Take care. Dr.Parth