A 66-year-old woman presents to the clinic with shortness of breath, leg swelling, and fatigue. She has a long history of type 2 diabetes and hypertension but until recently had been able to go for daily walks with her friends. In the past month, the walks have become more difficult due to shortness of breath and fatigue. She also sometimes awakens in the middle of the night due to shortness of breath and has to prop herself up on three pillows. On physical examination, she is noted to be tachycardic with a heart rate of 110 bpm and a blood pressure of 105/70 mm Hg. Her lung exam is notable for fine crackles on inspiration at both bases. Her cardiac exam is notable for the presence of a third and fourth heart sound and jugular venous distension. She has 2+ pitting edema to the knees bilaterally. An ECG shows sinus rhythm at 110bpm with Q waves in the anterior leads. An echocardiogram shows decreased wall motion of the anterior wall of the heart and an estimated ejection fraction of 25%. She is diagnosed with systolic heart failure, likely secondary to a silent myocardial infarction.