Hi I am so glad I found this website!! I have been suffering for 10 years with panic attacks. I had a period where I was doing pretty good I could leave my house and everything, but in around June 2011 my anxiety came back really strong and I am now suffering agoraphobia. I actually was in the ER yesterday because I got these weird sensations in my head and felt lightheaded and thought I was going to passout! Of course they did no test or nothing because once you are diagnosed with panic attacks thats what you always have. My question for anyone here is have you ever gotten a shocking feeling in your head and dizziness that last for about 20 or 30 sec then stops. It kept coming yesterday about every 20 minutes! I ended up in bed all day! Now today the dizziness is gone but I am so shaky and scared! Thank you for reading this.