I have recently been diagnosed with high blood pressure and just woke with a heart rate of 120 should i be concerned ? i have been taking lisinopril for 3 days

I'm : I'm an ENT physician, however, it is not normal to have a heart rate of 120. It is possible your blood pressure dropped either from the medication or related to positional (orthostatic) changes in going from lying down to upright posture which causes the heart to beat faster to maintain cardiac output. I would definitely discuss this with your internist or cardiologist. This usually is not a serious problem.

No.: A heart rate of 120 is not unusual or worrisome per se. It can be a normal response to various things, such as exercise, pain, fever or anxiety. If it resolves on its own, within a few minutes then you need not worry about it. However, if it persists for hours or if you are having symptoms such as trouble breathing or chest pain etc., then it should be evaluated.