ATTR-CM(Transthyretin amyloid cardiomyopathy)

If you are having shortness of breath and the doctor dont know why, it might be that you have ATTR-CM. It can be hard to diagnose and awareness of the condition remain slow, even among doctors. '
It has the same symptoms as HF,
Test after test may not reveal any reason for the shortness of breath because doctors arent aware of this condition. This information was taken from an article on webmd.com