Welcome to HCM!
No,your symptoms are NOT related to heart disease
Since your doctor has examined you and found no lumps in your neck and you complain of a heavy pulse in neck I think symptoms are related to tension headache
they are most common type of headaches
are likely caused by tight muscles in your shoulders, neck, scalp, and jaw.may be related to stress, depression
, anxiety or holding your head and neck in an abnormal position.
It may feel dull or squeezing or pulsatile.
you can rest in a quiet, dark room
Place a cool cloth on your head
Use any relaxation techniques
you have learned
hope this will help you!