Last time I felt like this it lasted yrs, in that time I taught myself how to make money. Infact i did a whole personality change. I sold my much loved Vinyl and CD collection, i went from loving music to not giving a toss...Sold nearly everything that was worth something on ebay...I started off fresh, decorated my room, bought new furniture and started to feel much better from then on...Like Supergee said you need to find a new interest...