
Thump, Thump, Thump: Sudden Heart Palpitations and General Discomfort—One Common Cause Is Often Overlooked
In the middle of the night, Mr. A tightly clutches his chest, with beads of sweat the size of beans rolling down his forehead. His heart is pounding uncontrollably, as if it’s about to burst through his ribcage, and everything in front of him seems to be spinning; he hesitates