Hi, I'm 16, average weight and height and am a healthy person. About a month ago, I was diagnosed with vertigo after getting dizziness when I sat down and closed my eyes but was not convinced. I got really anxious and worked up about it and spent days in my room crying because I thought it was something more serious. It seemed to calm down a bit but a few weeks ago, I was on holiday and the symptom came back and I got really anxious again and ever since then I wake up anxious and I can't stop thinking about symptoms and if it could be a brain tumour. When I got back off holiday, I had terrible stomach upsets and pains, tingling in my hands and feet. I then had blood tests and they came back clear. A week ago, I started getting weird head sensations in the right side of my head, mostly at the back. It will not go away, there's no pain but it feels like someone is appealing pressure there. I am so scared, I've got something wrong with me, I can't cope with that. I feel like I'm going insane, I used to be such a happy person, now I'm miserable, constantly snapping at people and horribly anxious. Is this down to anxiety or something more serious. I seriously need your help because I don't know how much longer I can take this? :(