Can losing weight reverse "mild" pulmonary hypertension? i had an echo done and this was the diagnosis and i was told lose weight only.

It can't hurt!: Improving your 'fitness' can't hurt - a moderate, balanced healthy diet, exercise, adequate rest, etc may resolve the problem. But it'd be wise to check for changes. Ask for a fuller explanation or find another provider who will follow-up and take steps if you are not successful. Don't worry. Unlike fitness, that can hurt! Press for more assistance: a plan for you and for the doctor. Best wishes