question: My sister and uncleboth died of pulmonary hypertension.  Now family members tell me the correct diagnosis was HHT. My sister was 40 when she died.  Although no one seems to have symptoms should my family and my sisters also be tested?  I have gingivitis and have my teeth cleaned every 3 months.  These past few weeks i think my gums are inflammed.  i have had some headaches, been dizzy and not feeling well in general.  What should I do?