Thanks for your query to us.
I understand your concern and anxieties.
I am afraid it will not be possible to extend much help to her through online system because as per your description she requires an examination to establish the cause of her shortness of breath
and pain. An angiogram is only a part of work-up and we should not guess about its results. What her ECHO showed? What her Chest xray showed? are all important. If her shortness of breath and chest pain
are continuing please take her to ER and consult. Do not speculate or try domestic remedies. Best way is to let her be seen by doctors and decide her management.