Pah in 2D echo with mild tr n trivial mr

I was Diagnosed with pml prolapse 1 yr ago, due to mild chest discomfort them 2d echo showed trivial Mr n rest all normal even ct angio normal, doctor gave me 10mg inderal 2 times a day for chest discomfort after 9 months echo showed trivial mr, no rwma of lv, good biventricular systolic function (EF 67%), mild tr with pah, rest all normal, doc said everything was fine and not to worry but I heard pah is serious life threating disease and needs urgent care at present I don't have any symptoms but some times have palpitations and dizziness after diagnosis also had anxiety regarding my health and future. I have huge college loans but with this condition will it be hard for me to work in future, will I live long enough with pah? No family history with heart disease. Is there any way to cure pah or control it, doctor said don't worry everything is fine as per report he didn't mention anything abt pah but after i searched for it I started getting anxiety please tell truth abt pah.