Hi all, I am very very interested in reading all that everybody has written because I have experienced this "zapping" feeling for about 5 years now too. It feels like an electrical impulse running inside my body and it is extremely uncomfortable and distracting (I feel it mostly in my head and my right hand). I am a very independent woman, but this feeling puts an incredible amount of fear into me. I can feel it in my head and in my right hand and it seems to get zapped or shocked at the same time. As it happens, the inside of my body feels like it is jerking, but obviously nothing is happening on the outside. I feel like I am living in a very silent hell when this happens because nobody knows when it is happening and no one can do anything about it (or so they say). I too have had much anxiety over the course of my lifetime and panic attacks too. My doctors keep telling me that this feeling is simply anxiety-based. I find that extremely hard to believe because the feeling is so real and so physical. No matter WHAT I tell them, I am met with "Well, you just have anxiety and it's coming out in a physical way." Some days I believe it, but maybe just because I want to? Other days, when it feels so physical or happens for an entire day, I don't believe that at all. I am very very scared most days of this. I find it difficult to even think about living alone, which I do. If I think about it too much, I become so scared that I can't even bear the thought of living alone. Most days I have images of someone coming in and finding me dead. I try not to think about it at all most days and just handle it as best I can. Like all of you, I did take an antidepressant (Zoloft and Paxil) for many years as a teenager and a child. This zapping began for me RIGHT when I started to taper off of Zoloft 5 years ago. I figured it was just an unpleasant withdrawal symptom and would fade or stop with time, but I never took an antidepressant after that and it has been happening for almost 5 years and nothing has changed. I am very fearful and upset because I have had exorbitant amounts of testing and no one sees it or believes me except close family members who believe what I am telling them. My doctors have also said it could be migraines and I have noticed that more days than not I do have a dull headache and Advil does seem to help it a bit, but when it gets very bad and I cannot stop it, I need to take Lorazepam and that helps it a lot and stops it. Somebody else wrote in about feeling a chill when it happens and I do feel that most of the time too. Some of it seems to be very sensory and has to do with noises, cold surfaces, hot surfaces, or exercising (when doing cardio specifically). I'm not sure if anybody else feels that too or has it happened to them at those times? There is so much to say, I feel like I could write all night. It seems to be worse upon waking in the morning most days or when I am trying to get going in the morning, but it does happen randomly throughout the day as well and happens while I am sleeping too. Too often it keeps me up at night. This is by far the most annoying and frustrating thing I have ever experienced thus far in life because it is terrifying when it happens and you never know when it will start or stop. You are a slave to it. Am I wrong? Most days I assume this is just the onset of a terrible disease that will someday kill me. What an awful thought to have most days of your life. :( I am very sorry that everybody else is going through this too, but know you are certainly not alone. Somebody somewhere needs to wake up and pay attention and realize we are not all lying about this. HELP!!!!!!!!!!! Please.