Which symptom indicates a possible stroke?

A severe headache with other symptoms can indeed indicate a possible stroke, particularly if the headache is sudden and severe, often described as a "thunderclap" headache. This type of headache can be a sign of a hemorrhagic stroke, which is caused by bleeding in or around the brain. In addition to the headache, other symptoms such as confusion, trouble speaking, weakness or numbness on one side of the body, and vision problems can accompany a stroke. Recognizing these symptoms is crucial, as prompt medical intervention can significantly improve outcomes for stroke patients.

While the other options may indicate various health issues, they are not specific warning signs of a stroke. Memory loss might be related to other conditions, excessive thirst could indicate dehydration or diabetes, and skin irritation may be caused by allergies or infections. None of these directly correlates with the immediate medical emergency of a stroke, making the severe headache combined with other symptoms the most indicative choice.