I feel the exact same way.  Ever since I quit my job due to severe anxiety and depression things have gotten worse.   You think that if you run away from situations your anxiety will lessen but it just gets worse.  Now I am having trouble leaving my apartment due to severe depression and extreme paranoia.  What makes it even worse is the fact that I live in an apartment building full of gossips and some very nasty critical people.   I can totally relate to the food issue.  I barely eat anymore.   As a person who has been extremely active in the past having done several mini triathalons I have got to put an end to this.  Unfortunately I have been battling clinical depression my whole life.   I am scared that my depression has developed into schizophrenia.  Can that happen if you suffer severe depression for a long time?  I have always had the paranoia and the only thing that makes it go away is swimming.  I feel I have no control over it.  I am scared there may come a time I never leave my apartment as my world has gotten smaller and smaller throughout my life.  I also live alone which makes it so much easier to do nothing and hide.  I have noone to push me as my family has given up and are leading there busy lives.  Just wanted to let you know I could relate and maybe someone could provide some advice for me.