What Causes Severe Chest Pain And Numbness Of Fingers And Wrist On Right Side?

I have severe chest pain on my right side above my breast when I breathe too hard sneeze or cough its excruciating pain my right arm and elbow are in a lot of pain and I have numbing sensation in my right or my right middle finger and thumb my wrist hurts this is really going on for 2 months and I m in excruciating pain what could cause it