The symptoms of acute IE usually begin with fever (102°–104°F), chills, fast heart rate, fatigue, night sweats, aching joints and muscles, persistent cough or swelling in
[heart.org]
[…] who are standing up, and sacral edema in people who are predominantly lying down).
[en.wikipedia.org]
Acute bacterial endocarditis usually begins suddenly with a high fever, fast heart rate, fatigue, and rapid and extensive heart valve damage.
[merckmanuals.com]