That doctor was unkind to you. Grrrrr. I found myself in that position a while ago now and it is horrid and I felt so embarrassed. Trouble was that I was in a part of a hospital when it happened as an outpatient I wanted them to let me go home but they said they had a duty of care to keep me in. When they had determined that I was having a panic attack the cardiologist yelled at the staff and myself. I cried. If they had just let me go home at the start.???

Sound like a you were having severe anxiety panic that mimics a heart attack but they are not to be sneered at. You were right to do what you did in case it was the real thing.

Your own male doctor should not be dismissive of you. You do have a heart murmur and you do have physical health issues. Might be a good idea to check back in with him to see what you can do to help you before it gets to that stage.

If you feel like your own doctor does not hear you and try to help then please get a second opinion from another doctor until you find a doctor that is helpful and not dismissive of you. They are out there.