Lately I have been getting these chest pains. My chest just feels really tight and sometimes I kind of get a pain on the left side of my chest. I don't know whether this is muscle pain or what. I had these before about a year ago and I went to the emergency room had an EKG they said my heart was a little fast but nothing was wrong and suggested it was just stress. Now I have been having them a lot recently especially at night before I go to bed. I have been going through a lot of stress lately with my exams and missing my ex. Thats when it started really when me and my ex broke up. Could someone suggest any relaxation techniques to me please because sometimes I feel like these chest pains are going to kill me. I would go to the emergency room but I am just gonna get told that its stress again and I don't really feel like waiting 4 hours in the waiting room just to be told that I am stressed out lol.