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7 reasons your left arm is tingling, from a pinched nerve to a heart attack — and when to call 911
In general, tingling in your left arm relates either to a nerve issue or a problem with blood circulation — but the specific cause can range from something as minor as sleeping on your arm ...
It's a result of when the heart is deprived of oxygen due to a lack of blood supply, which causes pain in the chest and, sometimes, the left arm. Angina feels like a "squeezing, pressure ...
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