I need to get motivated but I don't feel fat... help!

I need to lose at least 40 pounds.... but I can't seem to get motivated. I think my main problem is that I don't feel ugly or disgusting or even fat. I don't know what's wrong with me. I was skinny for much of my life... no more than 115 until my early 20s and I still feel skinny... until I see a picture of myself. For some reason a mirror doesn't really even help.

I guess in some ways I'm lucky that I'm not so down on myself and I am still confident. But I really do need to lose weight. My boyfriend is so fit.. he has an eight pack... why can't I get motivated?

I went to a support group and they were just talking about how horrible they felt about the way they looked... I just couldn't relate. I know I should feel bad, right?! I weigh about 170 and I'm 5'2".

What's wrong with me?
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