I Have Cogestive Heart Failure. One Of The Symptoms Of

I have cogestive heart failure. one of the symptoms of flare up is this pain on left side just below the heart. It comes and goes, but this week it has been more persistent, and tonight I had sharp pain that I went into a sweat. Made so comomile tea and now it has gone. My doctor does not know what it is but this is getting worse every day. Forgot to mention extreme burping when this happens