Solsted
Beyond tired, weary, or exhausted. When one is so worn down of body, mind, and soul that just saying "I'm tired" doesn't truly define how empty and done they feel. When one feels so worn out that they have no physical energy, no mental energy, and they feel empty/hollow.
I am so mentally and physically drained that I am no longer just tired I am completely solsted.
Or
People who have severe depression tend to feel solsted often.
Or
People who have severe depression tend to feel solsted often.