Hi. I have suffered from GAD on and off (mostly on) for about 3 years but in recent months, health anxiety has been a problem. Every time I notice anything, I fear the worst. During attacks, heart palpitations have terrified me but I know it's just anxiety but lately I've been terrified due to a heavy feeling in the middle of my chest and throat. I feel burping can relieve it for a few seconds but that's about it and I struggle to do that at times and it's usually a small burp or 2 and it often feels like something's stuck. There also seems to be a build up of mucus and the heavy feeling is often in my throat. I feel short of breath too a lot of the time. My diet is fine and I'm slim and I'm also 18(male) but I really am frightened constantly. It's making my insomnia worse and I am always afraid there's something seriously wrong with me. I'm terrified I might die. I can barely go outside anymore as I'm terrified for my health and afraid I might have an attack as I have done before. My anxiety has been severe for several months at a time since I was 15 sometimes but health anxiety is new. I haven't been this scared in my life. I just don't know if it's anxiety or if I'm dying. The symptoms aren't constant I don't think but they might as well be. There's no pain, just discomfort. I'm so focused on it I feel sick and anxious in some way pretty much all the time and even when I don't feel so anxious, I feel physical symptoms. I just don't know what to do anymore. I'm going crazy. I feel anxious typing this and thinking about it. I would be so grateful for any information as I am truly terrified of this whole thing.