<s>[INST] How Do I Know if My Heart Failure Is Getting Worse? [/INST] Talk with your doctor if you notice mental changes like confusion or memory loss. Also pay attention to shortness of breath, feeling extra tired, a faster heart rate, quick weight gain, swelling in your feet and legs, or changes in your appetite or sleep. Source: WEBMD. Link: https://www.webmd.com/heart-disease/heart-failure/answers-about-heart-failure. Field: Cardiovascular. Disease: Heart Failure </s>