Please call 911 immediately if you are having chest pain, difficulty breathing, severe bleeding, sudden weakness or numbness, or if you think you have a medical emergency.
After calling 911 for immediate symptoms, take the following steps.
If the person has severe pain but no obvious neurological symptoms or other distress:
If symptoms progress slowly or aren't obvious for days:
Hospital follow-up will depend on the severity of symptoms.
WebMD Medical Reference