WebMD rounds up seven pains that could be a matter of life and death and explains what to do if you experience any one of them.
- Worst Headache of Your Life
- Pain or Discomfort in the Chest, Throat, Jaw, Shoulder, Arm, or Abdomen
- Pain in Lower Back or Between Shoulder Blades
- Severe Abdominal Pain
- Calf Pain
- Burning Feet or Legs
- Vague, Combined, or Medically Unexplained Pains
Don’t leave it too late. Any one of these could be really serious, or a severe case of terminal hypochondria.
More details here