Starting when i was 19, i started having really bad chest pains, it felt like it was on the left side of my chest, it got so bad, that i had a hard time breathing, and got really dizzy, and sweaty. I took myself to the ER, and they did and EKG, chest x-rays, and blood samples, said it was Acid refux, and put me on meds, i've been taking them for almost 3 years now, and i still have the same pains, they seem to occur more often when i'm upset, or crying, but they have also woken me up out of a deep sleep, and i have the exact same symptoms. what could this be?