What is fear of the end called?

Is carbon a poison? Can you develop a brain tumor from not sleeping for one week? What could an itchy red full body rash be caused from? Ever since being pregnant I have had this rash looking thing on the bottom of my stomach and it has little blisters on it too and can itch quite severly does anyone know what it could be? How does the brain and emotions regulate blood pressure? What type of tooth is found in adults that is not found in baby teeth? Is burping a baby just for their comfort? Can one get arthritis in the skull? Does mercury have an odor? Are their risks of birth defects if Vitamin C and Parsley doesn't work in causing a miscarriage? What are the components of the skin? What fatty plaque deposits in the arteries? How can you come out pregnant while you have your tubes cut? How long after due period should a pregnancy test be done? Why is your pupil so sensitive? At what age do you get your wisdom teeth? Is the acetabulum a flat bone? Can your heart murmur make you very tired? Could i be pregnant if on birth control but didn't take correctly? Can valley fever spores be killed?