Hi everyone, I really need some help and advice. I'm 16 years old, healthy, a little overweight but not badly. About 1 month and a bit ago, I was diagnosed with vertigo because I was getting dizzy when I sat down. But I got very worried about that because I have a massive fear of dying. Anyway that seems to have cleared up now. A couple of weeks ago, I was on holiday and every little symptom I had made me anxious. I know have been having very bad belly ache, so bad, I keep losing my appetite. Two weeks ago, I started getting tingling in my hands and feet and now weird sensations in the right side of my head. I am so scared, like it feels like something is crawling on my head and someone is applying pressure. It occurs everyday, it comes and it goes and when I get anxious it gets worse. i'm so scared, literally, it sounds silly but I end up in tears over it because I fear I have a brain tumour and stuff. I've had blood tests done and they were clear. Is it anxiety or something serious? Please help me!