My Chet Starte Hurting Right In The Middle For A

My chet starte hurting right in the middle for a day I was in bad pain. It kpt me up most of th night. The next and for a fe Bfd ays it all moved to my left side. Hurt to breathe hurts in my collarbone and even in my left shoulder blade down my left arm an sometimes shooting pains down my arm. I have been extremely tired an nothing will relieve my pain but asprin and when I take the asprin I feel completely better even more energy. Whats goin on with m?