My second husband almost died during an acute withdrawal episode brought on by his admission to the hospital for pneumonia (he didn't tell anyone how much he drank, though he did admit to a drinking problem). He hallucinated, was violent and had to be put into restraints, he slipped into a coma that lasted over a week and his liver and kidneys shut down. Doctors weren't sure he would live.
Thanks for posting this, and best wishes for your safe, medically-supervised detox!