So I've had anxiety for a little while now and I've always been a very worrisome person. I'm only 17, healthy and no where near obese. The other day an acquaintance I knew died from a blood clot in her lungs and now this has made my anxiety awful. Blood clots have always been a fear of mine. Right now I am sick with a cold (Nadal congestion, a cough) and yesterday I began to feel lightheaded, chest pain and I thought it was gonna die! Ever since then I've been worried on and off. Right now I'm up cause I'm worried that I'm having a heart attack. My left arm feels a little weird and my chest hurts (especially when I cough). Is my anxiety making me think all these bad things ?? My thing is that I don't want to cry wolf and go to the ER and there be nothing wrong. At the same time I really don't want to die. Advice?