I am 30 yr old femane, mother of two. I did have an echoe done and it showed that i have 3 mild leaky heart valves. But i have been having a lot of problems with sudden heart racing over 130bpm. Since the very first time i experienced this problem i am obssesed with always checking my heart rate. I do have anxiety and fear of dying and when i feel that my heart is begining to race i think i make it worse sometimes by overacting about it which raises it more. My question is how can i determine if it is tachycardia or anxiety? The er once said i had sinus tachycardia but seemed very anxious. is this bad?