heart-failure symptoms.
These symptoms are nonspecific, but their appearance alongside breathlessness, swelling, or fatigue makes medical evaluation more important.
## 9. Brain Fog or Confusion
Some people with heart failure experience changes in thinking.
Possible signs include:
* Forgetfulness
* Difficulty concentrating
* Confusion
* Disorientation
* Feeling mentally slower than usual
Family members may notice these changes before the person does. The American Heart Association lists confusion and impaired thinking among possible signs of heart failure.
Sudden confusion can also signal other serious conditions and should be assessed urgently.
## Why Heart Failure Can Be
