My heart bit is louder, I can feel it like when somebody gives surprise and you feel heart bit louder the same. My pressure is variable during the day. I checked up with physician and also with cardiologist. I gone through all lab test i.e. B12, D3, Thyroid, Cholesterol, TMT, Eco, ECG, Sugar etc. Fortunately all reports are very very normal, There is no danger. Dr. Prescribed blood pressure tablet (Sartel LN) 10 Days before, I am taking it regularly but still I do not understand why heart is bitting louder and due to this I get tired end of the day, overall feeling is not normal, do not like to talk with anyone, irritated feeling, sometime it gives headache too. I play tennis everyday two hours in the morning. My food habit is absolutely fine at home only, normally on time. Kindly please explain me what it is? How I can overcome this problem.