Hi Wepow
I too an suprised your T doesn't think it 'feels' like depression. Depression doesn't have to be sad, it can be numb, distant, uncaring, unmotivated etc. It sounds like many of the feelings you have are very similar to a severe depression, however I guess I can't diagnose you either and you know yourself better than anyone but it sounds like you may need more help as you are at the least, very low at the moment.
(((((((huge hugs)))))))