Hello Doctor! I am 20 years old. Recently, I have noticed my heart rate suddenly increasing, often reaching 100-110 beats per minute, as I can see from my Apple Watch. I often experience hand tremors, irregular heartbeats, and gastroesophageal reflux disease

Dear doctor, one year ago, I had a fast heart rate, and after consulting a doctor, I was given Concor 2.5 mg, to be taken once daily. I took the medication at 10 AM every day. Now that I want to have another child, I have discontinued the medication. Five days after stopping, I have high blood pressure and a very fast heart rate of 135 beats per minute.