Suggest Treatment For Chest Pain And Shortness Of Breath

Hello - I am a 60 yo female in relatively good health up until last week when I experienced 2 bouts of chest pain. On the second one I went to the ER - had blood work with normal trophonin levels x 2 and normal ECG s over a 4 hour period. Went today for a stress test - some dilation noted on the resting ECG which was stated as being at the top end of normal but I was very short of breath on the stress test. I have not been given the results of my stress test yet, but I am concerned about the issue of possible dilation - they did not say which chamber of my heart is dilated.