Pulmonary Hypertension

I have questions regarding Pulmonary Hypertension as a result of a cardiac catherization done recently.I have a known small airway lung disease but I have not had a specific diagnosis.  I know from several tests that my heart is fine. Stress test (echo-cardiagram) plus an additional two other echocardiogram. I have not been able to get a specific diagnosis, I am having trouble getting my heart doctor to classify my Pulmonary Hypertension after the cath  procedure. The numbers below seem ominous when I read some papers. I am trying to understand how bad the Pulmonary hypertension is:

SVC (superior vena cava) mean =9mmHg and

Pulmonary Atery sys/dia
PA (mean values)= 32/26 (mmHg) mean values systolic/diastolic
PA (max values) =37/27
average value =28 mmHg

PCW Mean=16  A-wave=18  V-wave=20 mmHg

From reading I find that these measurements are the gold standard for defining the condition "Pulmonary Hypertension"  My doctors know that the lung is the problem which makes it "secondary" PH. I don't have a scale (normal,slight, moderate, or severe") Could you describe the SPH severity from these numbers ?

[Mukesh Garg, MD]

The PA (max value) of 37 systolic grades the severity as mild.

[coloradoman]

I have chest pains and pressure in chest at rest. I am still able to walk 4 miles most days
I am 50 years old 6ft and weigh 207.