If you don't want to make the choice on if you go to the hospital then give that power to someone you can trust that understands your situation to make a decision and will choose what is in your best interest. If there is nobody that you can trust to make that decision then you have to make it yourself. Manicminer is right about it being safer because it is a controlled environment. Doctors and nurses who understand your situation and BP in general are there with a goal of helping you get better.
Doing nothing will not help you any. It may make the situation worse.