Anti matter, I don't know if you are on anti depressants but if not would you consider trying them? Have you changed medication lovely sometimes this can make you worse! I am so sorry you are feeling like this but please try to do something nice for yourself before you start feeling worse.
Are work aware that you are severely depressed? If they were I am sure they would be sympathetic with you and not dread you! I am so sorry you are feeling so bad and hopeless sending lots of hugs to you (hugs)