Call 115 for
- Chest pain or pressure, especially with shortness of breath, sweating, or pain spreading to the arm, jaw or back.
- Signs of stroke: sudden weakness or numbness of the face, arm or leg, especially on one side; trouble speaking or understanding; sudden loss of vision or balance.
- Severe difficulty breathing.
- Heavy bleeding that won't stop.
- Fainting, confusion or unresponsiveness.
- Severe allergic reaction — swelling of the face or throat, or trouble breathing.
- Sudden, severe pain anywhere, or rapidly worsening symptoms.
Don't wait
With heart attack and stroke especially, every minute matters. Don't wait to see whether symptoms pass, and don't wait for an online answer or a message.
Finding care
For the nearest hospital, emergency department or pharmacy, see find care.
Sources
- Recognizing medical emergencies — MedlinePlus — U.S. National Library of Medicine. Checked 2026-09-26.
- Stroke — MedlinePlus — U.S. National Library of Medicine. Checked 2026-09-26.
- Heart Attack — MedlinePlus — U.S. National Library of Medicine. Checked 2026-09-26.
Editorial update: 2026-09-26.
Medical disclaimer: this is a source-linked educational summary, not individual medical advice, diagnosis, prescription or interpretation of personal results. For severe or rapidly worsening symptoms, call 115.
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Antopeloni — plain-language health education from public sources, part of the ZIBADIS network founded by Masoud Moghaddam.
