I'm an 18 year old female who has anxiety but is terrified one day I will die. I have constant chest pain that comes and goes through out the day. I was in A&E almost a month ago because I took a bad panic attack and I got an ECG done, chest X ray, bloods, my urine was taken, blood pressure, temperature. They said it was panic attacks and that my white blood cells shot up so I have an infection somewhere they couldn't find the source of infection, they gave me augmentin tablets. After that the panic attacks got worse but now I haven't had one in like a week. I'm still afraid there's something wrong with my heart, sometimes I get irregular heart beats which also worries me, at night mainly. What should I do because my parents think it's all in my head but I'm so scared I'm gonna die one day, please help.