I think you should call. Maybe there is a simple med change that will allow you to avoid the hospital. Also consider calling a hotline, and trying to get an extra appointment in with your t if you have one. Maybe just talking about what is making you feel so crappy will make you feel better. You can also try journaling.

If you start to act on your thoughts, please do not hesitate to call 911. I know that you don't want to go to the hospital, but it could save your life.