This morning I had a chemical stress test and when they pushed the medicine that causes the stress, it made me feel as if I was having a heart attack. My jaw, left shoulder and left arm all hurt so bad. The pressure was terrible, and felt as if an elephant was sitting on me. I was having to use my breathing exercises from having my child to even be able to get my breath. My question is, I am still really short of breath, and it is almost 9 at night. Not sure what to do , or if it is even related? My heart dr is out of the country for 2 weeks, and I wont know anything for a while, so should I call the ER?