Seeing your doctor is a great idea. Try to pack as much sober hours before you go. Even if you have shakes. It will allow him to better diagnose your level of physical dependance to Alcohol.
As for your partner, you must do this for you first. Time to be on the selfish side. This is your battle for your life. If you come back and he's gone, you will have your answer.
You can do this, keep us posted. We will be here to support you ;-)