I do not know exactly what you are going through but I do know that the enemy is attacking you in your mind. When your not feeling well with anything you should consum yourself with God’s word. Let him speak to you, read the bible, watch the christian channels, listen to christian cd’s in the car. The enemy’s number goal is to steal your joy because he knows that if you fall for this trap your are useless in the kindgom of God. Press through this and try to think postive, think about the good things in your life and realize how blessed you really are are. Reconize when a negativity thoughts enters your mind and know that you have the choice to either believe it and continue to dwell in this frame of mind or realize where the negitivity is coming from and pray.