Hello, a cardiologist has told me that he suspects i may have pulmonary hypertension. i've always been fit and athletic, still am. does it make sense?

Possible: Pulmonary hypertension is a disorder in which the pressures within the vascular bed of the lungs is elevated. It can occur for a host of reasons not possible to elaborate on here in this forum. Diagnosis is confirmed either with 2-dimensional echocardiography (fancy term for comprehensive ultrasound of the heart) or heart catheterization. Symptoms may be absent or mild early on.