Someone saying that there's something that they need to tell me.
My boss saying that he needs to talk to me.
Someone saying that they have some bad news.
Bad traffic.
Going to a get together where I know hardly anyone.
The dark.
Hearing people outside at night (even tho I live in an apartment complex), because I'm afraid of a break-in.
Not being home because I'm afraid of a break-in, and I'm afraid for my cat.
Having the power go off when it's cold outside.
Seeing the check engine light/any other light come on in my car.
Not hearing from my best friend (because she's a severely depressed alcoholic)
Not hearing from my mom or aunt (because I'm petrified of something happening to them, esp. since my aunt has severe COPD and only 34% usage of her lungs)
Hearing sirens.
Shoulder-to-shoulder crowds.
My debts.
Money.
Having a deadline for something.
An upcoming test/presentation.