2) Dark urine
Dark urine is a common symptom of high bilirubin levels. The exact mechanism of cholestasis is a bit complicated, but it involves disruption of the normal flow of bile which leads to an accumulation of bile acids and bilirubin, which can eventually be excreted in the urine and can cause dark urine.
It is important to note that dark urine is an indirect sign of cholestasis, and it is important to seek medical attention to confirm the diagnosis. It can be caused by other factors that should also be considered. Dark urine usually happens in more severe cases when the damage to your liver is more pronounced.