I was drinking about 12 units a day of alcohol. I went through daily withdrawals (sweating, anxiety, heart palpitations) at work and weekends of course. Nothing to where I couldn't minimally function but I felt like I was going to have a heart attack all the time. When I stopped they did not get any worse than they were every day when I was drinking so it was no big surprise. I just felt on the verge of a panic attack for a few days but the only difference was that I did not drink at night. I just waited them out hour by hour and minute by minute. I never want to go through that again.
By the time I finally stopped I was a pro at going through withdrawals. It was my norm rather than the exception.