Heart Failure Support Group
Heart failure is a condition that can result from any structural or functional cardiac disorder that impairs the ability of the heart to fill with or pump a sufficient amount of blood throughout the body. It is often undiagnosed due to a lack of a universally agreed definition and difficulties in diagnosis, particularly when the condition is considered "mild."

I had that condition for more than 3 years.
It was annoying, and sometimce it would last for a few weeks, but it did not hurt me and although i felt warm - it never seemed to cause any other problems.
I just would ignore it after a while. And a soon as I ignored it, everyone else forgot about it too.
Hugs, Raoul