Hello and thank you for using HCM.I carefully read your question and I understand your concern. You should not worry about. I will try to explain you and give my opinion. Normal heart rate ranges between 50-100 beat for minute. You should know that this abnormal heart beating have to do whith some rhythm issues There are some electrical impulses that generates in parts of the heart different from normal sinus rhythm.They cause premature heart contaction that its not a normal one and usaly they are followed by a pause and a normal heart contraction. This is why in this cases you feel like a skipped beat, like your heart pauses, you might experience palpitation, flattering sensation, heart racing,anxiety, difficulties in breathing deeply. The causes of this rhythm issue might be different to simple emotional stress, excessive coffee consumption or pathologys like anemia, hyperthyroidism, electrolyte imbalances, active infections ect. So, if I was your treating doctor I will recommend some examination like an electrocardiogram, a cardiac echo to evaluate heart function and valves, a full blood analyze, your thyroid hormones and a holter rhythm monitoring to see your rhythm tendency day and night. After all this we can better judge what we are dealling whith and how to treat it. Hope I was helpfull. Best regards, Dr.Ervina.