Hi, The Past Two Weeks I’ve Been Experiencing Chest Pain

Hi, the past two weeks I’ve been experiencing chest pain & arm pain. I’ve went to the er numerous times to find out it’s not a heart attack. Since having the same symptoms. The pain comes & goes sometimes with deep breaths I feel it in the middle of my chest but more towrards the left. My arm numbs up on me. But every time I go to the doctor my ekg is normal. My blood work came out normal. I also always feel like I’m having heart burn I keep burping.