Smacked speaks the truth. Maybe your Dad knows more than he's letting on but doesn't know what to do. Right now getting sober is the most important thing, don't worry about what others are thinking. As far as seeing a doctor goes, look at at this way - they can make sure you don't get in to serious trouble and diminish the unpleasant withdrawal symptoms, so why not? They have no reason to not take you seriously, just be honest, they're there to help, they work for you. I think you're headed in the right direction, keep it up.