Hi Ashish, Welcome to Healing Well forum, we are happy to have you join us here. I am sorry for what your going through.
I cant say what that heavy feeling is that your getting in your heart. I have heart disease with a pacemaker implant and honestly havent felt a heaviness or anything other than pressure or sharp pains.
Hypertension can be a result of many different causes and doesnt mean that because someone has high blood pressure they also have a heart defect or disorder. My first recommendation to you would be to become as informed regarding your diagnosis. Then to also research your medication....Beta Blockers are difficult for lots of people to take and have many side effects, perhaps this may be what your feeling...I dont know. If you have a family history of Hypertension then your diet and exercise is going to be most important to keep your bp down.