I Went To The ER Last Week Thinking I Might

I went to the ER last week thinking I might be having a heart attack. Thankfully me heart is great! Still having symptoms of pain (comes and goes) around heart area. Lots of gas, burping yet never had signs of indigestion before. Pain has persisted for a week. ER doctor said could be musculoskeletal. I can't get into new doctor until last of May. Your thoughts on my complaint?