Severe headaches: a signal from the brain
A sudden, intense headache that comes on suddenly can be a sign of a brain hemorrhage or meningitis. If you experience neck stiffness, confusion, or vision problems, you should seek medical attention immediately. Don’t just take a painkiller without identifying the real cause.

Acute lower back pain: don’t ignore it
A sharp pain in the lower back that travels down the leg can indicate a herniated disc or a pinched nerve. If the pain doesn’t go away after a few days or gets worse, you should seek medical attention to avoid nerve complications.

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