Thanks for writing in HCM.
According to your symptoms you may suffering with cervical spondylosis
. In your age due to sitting posture, many peoples are suffering with this problem. Nothing to worry about this. You should concentrate on your posture means your posture should be straight. Use hard bed. Avoid pillow or use thin pillow. Avoid jerky movements of neck. Heart problem not occurs only when there is left arm pain. Angina i.e.Heart pain associated with Chest pain with shortness of breath
and many other symptoms . Many risk factors are there for Heart problem i.e. High Cholestrol level, Hypertension
, Diabetes Mellitus
, Increasing age. You should get your ECG , Echo done precautionary. You should go for physiotherapy
if problem is severe. According to my opinion you are not suffering with Heart problem.
With Best wishes.