When I was living with panic and bad anxiety I had blood tests, an ekg.....all normal. Your mind tells you something is seriously wrong.....so why cant the doctor find anything?? All these weird symptoms....pins and needles, feeling shaky, blurred vision, tightness and heaviness, weird thoughts, sweats.......these are all NORMAL reactions to stress hormones. So in a way there is nothing wrong with you; its just that your nerves have become super sensitised and react to every little thing. Even the thoughts;"OMG, I hope I dont panic in the shopping mall", or "I havent had a panic attack for a while, I wonder when the next one will be?" Can trigger it all off. The nerves react and send stress hormones again. You have become afraid of the anxiety state itself and this keeps you trapped. Acceptance is the key to freedom. I know. I,ve been there. I,m out the other side. Anxiety is a wonderful system to save our lives and stop us being harmed, but especially if you are a sensitive person it can go overboard. Dr. Weekes books are brilliant on this.....so all the best AyeAna......you can enjoy life again! Xx