A couple weeks ago I had a few symptoms of a heart attack, including chest pain, numbness in my left arm, no pulse, then heart rate so rapid I thought my heart was going to beat out of my chest, shallow breathing, and inability to stand on my own two feet. Everything went away after about 20 minutes except for my arm which stayed numb for several hours. Ever since this incident I have been experiencing a rapid heart rate, sometimes even irregular, and extreme lightheadedness.
Please let me know what you think