Dealing with Medical Concerns and Lack of Support

I think she is so dismissive cuz I hide it well. I've always been very adaptable even as a young kid. One time my rhr was up over 200. She said it was just anxiety. I wasn't anxious about anything, but she said I was good. It went on for 6 hours before it finally went down. I was at hosp 2 days prior for chest pain but they didn't find anything. So she figured I was fine. Shrugs

Is there any specific reason she is being so dismissive of it? Even if it is just stress and anxiety, it is very good to take tests to rule out other possibilities and double check. It is how I have gotten through my issues. I hope you can figure out how to help her understand.