One of the worst days of my life

Simba was probably my best friend.  He is now a missing friend, M.I.A and needs to come home.  I've had my big Simba since I was 2, I'm not pretty much 19, besides the obvious being my mom, Simba has been my first real attachment.  I feel so heart broken.  I hate being in my house, I'm going nuts, I keep crying every time I think of him. I don't know why he would leave the house.  I want to know he is okay, that he is safe, warm, is fed, is hydrated, isn't injured etc.  Most of all I want him home.  There's nothing worse then losing a loved one. I loved Simba, he was always there, a big, warm, fuzzy cat to brighten me up when I was down, help me fall asleep, be there when I woke up, lay with me on the couch.  He'd always listen to how I was feeling and make me feel better.  I just want him to be home, please, anyone bring him home.