Yeah, I have a heart attacked in 06, first, it started with a kind of squeeze, tight feeling on my chest and now started to get worse and a ton of pressure loaded on it, like a big stone setting on my chest and radiate to my left arm, keep in going to my jaw and I was not able to close my mouth, I felt nausea, together I felt I was having problem breathing for a couple minutes and I got a little bit of release but a second later the tighten , heavy pressure, crushing feeling return and it did not go away and getting worse and worse and my half of left side upper body is like being lock in and I was not able to breath in any more. When the pressure and pain got very bad and last , I was pick up by and ambulance and before I know it , I was in the Hospital bad with doctors and nurses, they help me to sign some paper and place 2 stents into my heart. I was told that I had a artery with 100% blockage and another 1 with 80-90% blockage, and I will need another stents soon, ( which they did it after 3 days ) I am still alive, so please don t take a chance, have the Doctor refer you to a cardiologist, and they will run some test and check it out. I was not so lucky because I told my MD over 8-9 times that I have pain in my heart, and she refused to look into it until I actually had a heart attacked and also got killed. Hope you will be all right.