I've read on anxiety center that flashes and shapes with eyes closed is a symptom of anxiety. However, last night I was trying to sleep, and my heart was racing slightly. My window made a loud sound! and there was a flash that covered my entire field of vision for a microsecond, there was nothing wrong when I opened my eyes. The flash was activated by the sound I heard...I'm tempted to start googling, but I know that if I do it can get out of hand. Has anyone experienced something like it? I have an appointment by the end of this month, should I wait that long?