Hello and thank you for using HCM.I carefully read your question and I understand your concern.You shoud not worry.I ll try to explain you something and give you some advises. My opinion as cardiologyst is that this might be a rhythm issue.You may feel this heart beats for different reasons.It may be a simple sinus tachycardia.This mean that your heart beats over 100 beat for minute.Its normal range should be between 60-100beat for minute.It gives you the sensation like your heart is jumping and like all your body like your head and your ears is beating too.This may happen for different reasons to simple emotional stres to different patologyes like anemia,hyperthyroidism ect. If you feel that your hear is beating in a caotic way it may be what we call atrial fibrilation.It may happen for same reasons as sinus tachycardia. You may all sow experience palpitations becouse of extrasistoles.This are electrical impulses that generates from different parts of the heart different from that of a normal sinus rhythm.This couses an ectopic heart beat that you feel like a skipped beat or like bumping in your heart and ears. My opinion is that your neck pain is not related whith your heart beats irradiating to your ears.its just your scoliosis and this are to different problems. The fact that you have a controlled blood pressure is a good thing.But you might have controlled blood pressure and steel experience arythmias. This is nothing to worry about.Only if this episode happens again you shoud refer it to your doctor to your next visit and make some simple examinations like a blood test,electrocardiogram and a holter monitoring for your rhythm. Whish I was helpful.Take good care.Best regards