Hi, I am a 20 year old male who has been experiencing light headedness followed by panic attacks for the last few months. I have seen a doctor and the doctor just gave me anxiety medication. I have been looking up symptoms for heart valve dissorders and am beggining to get suspicious. I was just wanting to know if my blood pressure sounds normal. When I feel fine, my blood pressure is usually 128/73. But when I get lightheaded feeling, my blood pressure is around 132/56. Is this diastolic reading way too low or is that about normal? My main question is, what is a healthy range of diastolic blood pressure?