The first night was the hardest for me and scared the crap out of me. That was 24 hours after my last drink and I thought I was losing it. I couldn't think, I was hallucinating, shaking, hot, cold, laughing, crying, no sleep, I felt like a total freak. All I knew was I won't drink that night, no matter what. I clinged to that thought, it was the only way to get me out of that hell.
You're doing the right thing! And asking your doctor for help is always a good idea.