I get that. It can be scary. It’s up to you if you want to check.
If I had a kid telling me their heart is going haywire, and the same kid refused to let me check their heart, I would most likely assume the kid was feeling anxious and looking for reassurance, rather than that the kid was actually sick. I would switch to trying to find ways to help the kid calm down, rather than being acutely worried for their physical health.
It is widely known in the behavioral therapy world that physical illness/pain is often much worse during times of acute stress. That doesn’t mean kids never get sick, but it does mean that caregivers sometimes have to do an internal risk analysis. Is this kid sick in the “needs immediate medical attention” way, or more in the “Everything in my life sucks and now I can’t ignore the sensory overload that makes my whole body hurt” way?
Does it need to be the ER, or would checking you for serious symptoms at home be okay? If your blood pressure comes back normal in the house, would you still need to go to the ER to feel as though you were being taken seriously?
Keep in mind, the ER is mosly there to stop people from actively dying. You can have very serious long term conditions that need treatment, but the ER would not look for those. They look for things that you would die from, and then discharge you with recommendations to see other specialists if you aren’t dying.
You would check that with a pule oximeter, which the house should also have. Its a little thing that clips to your finger.
If you feel you have an irregular heartbeat, but your vitals are normal, it is usually something you need to see a cardiologist for. At the ER they will just determine whether or not it is immediately fatal. If this is something that happens often, you need to see a cardiologist to work on ways to help long term.
I went to a cardiologist because of tachycardia and she did all the tests and told me to reduce clozapine. She didn’t treat me badly because of the meds. Most docs don’t but you can always be unlucky.
She also told me to lose weight (which I have). Because extra weight is also taxing for the heart.
This is likely the cause of the rapid heartbeat. But also, cardiologists are generally aware that psych patients tend to be on medications that can cause heart issues as a side effect. I can’t make a guarantee, but it would be highly likely that a cardiologist will take you seriously and do the proper tests, because they know you are at risk.
Not sure because im not a cardiologist, but I’m sure there’s explanations out there. I just know it was something that showed up a lot when my kids were havinng trouble eating.