Hey all, i'm a 20 year old male and for the past month or so i've been so worried that i'm going to have a heart attack :( it's stopping me from being my normal self and i hate it! For the past 2 days i've had bad dizziness and keep breaking out in cold sweats, my GP and even nurses from the NHS 24 have told me it's just my anxiety but i can't bring myself to think they're telling me the truth, everytime i get a new symptom i phone the NHS 24 because i'm worried it may be heart related, i've been smoking for 3 years but the nurse still said it's not a cardiac problem, i can't get to sleep at night and when i do i wake up covered in sweat or i just wake up every hour, sometimes i'm even scared to go to sleep incase something happens when i'm sleeping :( i'm desperate for help! Any advice will be greatly appreciated, thanks guys!