Concern Related to echo. Echo and ecg?

I have met cardiologist in January 2025 He perform ECG and Echo (which was shared) lipid profile and thyorid profile.. As per cardiologist ECG says Sinus Tachycardia so he gave Ciplar La 20 for 10 days i have taken it .. But in February I have 3-4 panic attacks where my heart rate increases due to constant thinking of heart attack..and heart rate has decreases after few second and came to normal and i m so much anxious... I want to ask you sir... Shall i have to do another Echo and ECG test ... To check for changes in my heart structure... Because sir Jab se news pe suna hai Cardiomyopathy ke baare me mai bht jyada anxious or ghabaraya hu darr lgta hai bht.. I don't have family History of Cardiomyopathy Kindly tell me sir? Shall i go for another echo and ECG?