I’ve been to 2 different places and had all different types of tests that you can think of. I experience really bad left arm pain that starts from down to the top of my arm and sometimes heart burns or just heart pain that can’t be explained but I’ll just call pain .  I also have pain all over my body and pain on my rist vein and arm vein and foot vein and I also feel like something is beating fast in the middle of my chest. Btw, I have really bad left arm pain right now as I am righting this. What is wrong with me