Hi. For about a month now I've been experiencing a dream-like feeling on and off which I've found out is called derealisation. I was already worried there might be something physically wrong with me, and just last week while we were studying Euthanasia in class I guess it kind of got to me and my heart started racing, I felt physically sick, I couldn't concentrate on anything except the thought that I'm very, very ill and likely going to die, my hands were shaking so bad my friends noticed, I felt dizzy, as if I might pass out and again I had the feeling of derealisation. Ever since then I've been so terrified that I might be terminally ill or something like that that I can't really function like normal. I go through periods where I'm fine, laughing and talking and doing normal things and then times when I want to run off and cry, or I just put my head down on my desk and start sobbing from fear. I feel like I'm losing touch with myself and I'm either worried that I'm dying or that I'll never get rid of these symptoms. Randomly, my heart races for a few seconds at a time, I feel derealisation very often and I'm in almost constant fear. I want to tell my parents but I'm afraid I'll start crying if I do, and I want to see a doctor to see if I have anxiety, but I'm even more afraid of getting diagnosed and finding out that I am physically sick. I feel nauseous just typing this. I don't know what to do. I just don't feel like myself at all.