Which headaches and nerve symptoms need a doctor, and which do not?
Headache was the most searched symptom in India in 2025. Almost all headaches are harmless, a few are not, and knowing the difference is the point of this section.
Why the thumb, index and middle fingers go numb at night, how carpal tunnel syndrome is diagnosed, and when a wrist splint, injection or surgery is the right treatment.
What sciatica is, why most cases settle within six to twelve weeks, the treatments with evidence, the emergency signs, and when spine surgery is actually advised.
The difference between vertigo and dizziness, why the room spins when you roll over in bed (BPPV), the simple manoeuvre that fixes it, and the red flags that mean stroke.
Why hands and feet tingle or go numb, the common and treatable causes such as B12 deficiency and diabetes, and the signs that mean see a doctor now.
Most headaches are harmless. A doctor explains the warning signs that need urgent attention, migraine versus tension headache, and how painkillers cause headaches.
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