Though you might think extreme fatigue, regular headaches, and even unintentional weight loss are nothing out of the ordinary, both a GP and a cancer doctor have previously told HuffPost UK they could signal deeper health issues.

They can reveal everything from anaemia to more serious conditions. The key is to get them checked out to be on the safe side, the experts advised.

And now, cardiologist and scientist Dr Ernst von Schwarz has shared the four signs he’d always see a doctor about, no matter how innocuous you might believe them to be.

These are:

1) Pressure in your chest

“Chest pressure or pain is always suspicious of a lack of oxygen in the heart,” the doctor told us.

Per the NHS, sudden pressure, “squeezing”, or even burning sensations in your chest are worth calling

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