Six days ago I was in a car accident. An elderly man ran the red and slammed into the passenger side bumper where I was sitting, causing us to spin out. Thankfully everybody walked away in one piece. Needless to say I was a little rattled. During the accident I was surprised at how calm I was, but my guess is that was the adrenaline. That night when it wore off is when the anxiety hit. I tried to go to bed, but there was no sleeping. The accident would come into my head like an intrusive thought, and every time it did I would get red hot waves of panic through my chest and down my left arm. I also had nausea and a bad headache. I ended up going to the emergency room the next morning and was diagnosed with a mild concussion. No screens for the next two or three days, no studying - basically get some rest for the brain. I attended a wedding in NYC that weekend, something the ER doctor said would be okay. I didn't realize how rough driving would be though - on the dr...