I just yesterday taught myself how to check my heart with a stethoscope. (ADC 615 series from amazon works well) ... no murmurs, clicks, or anything like that. What I did notice and am going to the doctor for this morning is a split S1 (no it's not an S4 or a mitral valve click).. curious to see what she says.
You can check to put your mind at ease. It's not hard to learn to do. You need to google to teach yourself where to test, and what is not normal. You can find sample sounds all over.
NO. I'm sorry, but I have to respectfully intervene here. stockwiz, I don't know if you know how anxiety works, but things like repeated testing and monitoring DO NOT HELP, and I'm disappointed that you would recommend someone actually BUY a stethoscope to monitor their heart more obsessively.
Lawkcrabb, listen. Heart rates are extremely variable and can depend on all sorts of things—exertion and temperature being two factors, also things like hydration levels, foods recently eaten and stress level, naturally. Frankly, it doesn't matter if your heart rate is 94 today when it's usually in the 70s. Clinically there is NO significance in that difference.
And despite what stockwiz, as well meaning as he his, has to suggest, you do not need more testing on your heart. You've HAD testing. Your heart's FINE. Fine. That you have trouble accepting that fact has nothing to do with your heart and everything to do with your anxiety. Are you treating your anxiety in any way? It's great that you were keeping yourself busy today—distraction and hobbies are a great help to getting our minds off health fears but it's gonna take more than that to get you feeling confident about your heart. Please, for your sake, stop monitoring it and taking your pulse. You really do have no need for it.