Sloofie, how do you actually feel about marrying this guy? I don't know enough to know whether your diagnosis is correct, but it strikes me that one possibility may be you feel ambivalent about this marriage. That could be because of depression, but could also be part of why you are feeling like you are.

I was never excited about marriage. I was depressed when he proposed, and felt like I had no other options. I was depressed pretty much my whole life. I went through the motions for a lot of years. We're still together after 18 years, but not really happy, and I wish I had known back then that I had other choices. I don't know if this has relevance for you or not, but I hope you work with your therapist and tell him what you are feeling, not feeling, etc., explore your life options at this point, and figure out whether this is really something you want to do. I know you're nervous about talking to the T. I was too. I was in therapy at that point in my life too, and didn't talk about what I needed to, and didn't get the help that I needed. You can work this out though.