I totally understand where you are coming from. I have no reason to be sad or feel this way. I have a lot of great things in my life. I try to change my attitude. sure some days will be ok and i can last but most days you wake up with this great pressure build up on you of just numb empty overwhelming feeling. I don't have any advise for you I'm sorry. All i can tell you is your not alone. I feel the same way and so do a lot of people here on PC so keep writing and getting things out and hang in there.