on a 1–10 scale. Many people describe it as “bone-deep exhaustion” that lingers no matter how much they slow down.
Shortness of Breath During Light Activity—or Even at Rest
Climbing one flight of stairs leaves
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you gasping. Or you suddenly need extra pillows to sleep comfortably at night because lying flat feels harder to breathe. This symptom, sometimes called orthopnea, happens when a struggling heart allows fluid to back up into the lungs. The
