I am completely stressed out and anxious to the point of throwing up and not eating. I can't focus on anything, and I am so sad all the time. I have thought about checking myself into the hospital, but I'm scared that they will not let me out if I go in. What should I do? Do you think that this would be a good idea? I keep thinking about suicide, and I feel like I am not worth anything. I try not to worry about things, but I can not help but just start freaking out. What is wrong with me?