I seriously have your exact same problem! Yes, I'm convinced it is a liver problem. Whenever I try to detox more, I itch more. I conclude that my liver is "backed up", so everything it can't process ends up leaving the skin, resulting in itching. My liver being backed up is supported by my high bilirubin levels (as you reported earlier). I read itching is worse at night since the body's cortisol levels drop. I have to take a hot Epsom Salt bath every night just to go to bed with minimal itching. Also, my body can't even process alcolhol anymore. If I drink, the alcohol (aka toxins), immediate go to my skin, causing intense itch. This is another sign my liver is backed up. I'm still trying to figure out a way to stop or reduce the night itching...