Hi @amalite , Nice to try and help. First off my recommendation is to get your condition confirmed with a cardiologist. There are so many different types of Tachycardia or fast heartbeat. SVT is called Super Ventricular Tachycardia. It normally in the lower region of the heart or the Ventricles. I had its sister version or VT. I'm not as familiar with the SVT type as Ive heard the treatment is similar but also managed differently with different people. Even among Cardiologist there are those who deal with the structure of the heart and those are the regular Cardiologist. For SVT, VT and AFIB to name a few you will see a EP cardiologist. They specialize with the electrical problems of the heart. EP stands for electrophysiologist. But most likely you will see a general cardiologist first so the right type of EP Cardiologist can be recommended. These days with all a doctor needs to know I would not worry yet. A short term fast heartbeat for someone your age can be just a nervous reaction and now that your sensitive to them it can make you a bit nervous, which will bring them on. It happen to me often.

so I myself got good at checking my pulse and if i had a good pulse then blood was flowing, just kind of fast. For me when I had an actual episode my heart would go into a quiver state where no blood was flowing, and my pulse would disappear.

A trick I have used when it happens is to cough real intensely on purpose and that movement of your lungs can kind of give your heart a nice hug and it can get it to calm down. Lets me know what you find out and maybe I can explain treatments further depending on what you find out.