Well, I Believe I Have Algophobia, Or Anxiety. 1, I

Well, I believe I have Algophobia, or anxiety. 1, I despise pain, death, horror, murder, darkness, and insanity. I have a lot of fears beaidea those but they do not concern this. 2, At night after I fall asleep I am aware of everything and that freaks me out. I am the 2nd floor in a 2 story house. I can hear people walking up the stairs and can detect how close they are to my room. 3, I am scared of leaving my parents and friends. When I am at school I don't have any fear of these things. Any idea what this is?