Hi Jus: I'm sorry you're having such a rough time at the moment. But even though your are very understandably depressed you should also feel a little proud of yourself at the moment. Overcoming an addiction is a huge thing.
This is not my area of expertise, but do you or could you go to AA meetings where you might meet others who have already gone through or can commiserate with you?
My thoughts will be with you. And Karen is right by the way, be totally honest about how you feel when you meet with your med. person.