My situation sounds exactly like yours!! i'm 25, and when i was in high school, i went through a phase in my life, that once night time hit, i had so much anxiety. I was scared to go to sleep, and I don't know what brought this one. I also went through a time, where I didn't want to go to school, the thought would make so panicy. I also went through a time, where i couldn't even sleep over at friends' houses, I would panic being away from home. I have been like this for as long as i can remember too. Anxiety disorders do run in my family, so i'm assuming that's why i am the way i am. right now i have this fear of being alone at night. i'm a single mother of 2 children, and for the past few months, i've barely been able to be home alone with them at night. I don't know why this has come about either. i know no one is going to break in, i live in a very secure condo, i think this is when my ocd is working at its best! it's horrible having anxiety disorders, because it really does take the quality of life away from you. i'm fine for the most part on the weekends, but when sunday night hits, these feeling all come back. i think it's because i'm not really happy at work, and this probably triggers my anxiety, considering i only work monday to friday. it has gotten better lately though, but you definitely are not alone with your worries!! i used to think that there was no way that anyone could worry about the most ridiculous stuff that i worry about, but the more you read up on things, the more you realize that how you are feeling is quite common!