Pain associated with passing out or feelings of lightheadedness;
Pain or shortness of breath in anyone with a swollen or painful leg;
Feeling like your heart is fluttering or beating quickly.
2. Shortness of Breath:
Difficulty breathing that worsens when you lie flat or when you exert yourself;
Feeling like you are breathing faster than usual or are having difficulty talking;
Difficulty breathing that starts suddenly;
Worsening of formerly stable shortness of breath, such as is seen in an acute asthma attack;
Shortness of breath with fever;
Coughing up blood;
Difficulty breathing in anyone with a swollen or painful leg.
3. Symptoms of stroke or TIA
Any of these symptoms are concerning even if they are transient or improve;
Weakness, numbness, or inability to move any part of your body;
Any changes in vision, including double vision, blurry vision, or loss of vision;
Difficulty speaking ;
Feelings of dizziness, loss of balance, unsteadiness, or difficulty walking;
Recent head injury (such as a fall) or stroke;
4. Abdominal and Gastrointestinal Symptoms
Bloody stools or bloody diarrhea;
Diarrhea associated with severe abdominal pain;
New onset of constipation, or stools that look darker than normal;
Vomiting blood or vomit that looks like coffee grounds;
History of heavy alcohol use;
Vomiting or pain that is keeping you from taking your regular medications;
Abdominal pain associated with fever, vomiting, diarrhea, or lack of appetite;
Abdominal pain that becomes worse after meals;
Abdominal pain in the presence of chronic ibuprofen (or any other NSAID drug) or aspirin use;
Abdominal pain that starts suddenly;
Abdominal pain that doesn't resolve;
Any of the above symptoms associated with a history of heavy alcohol use.
5. Loss of consciousness or significant lightheadedness
Passing out associated with chest pain, palpitations, abdominal pain, shortness of breath, or headache;
Passing out associated with the presence of any symptoms concerning for stroke or TIA;
Passing out without preceding warning symptoms;
Passing out during exercise.
6. Severe headache:
Headache that starts suddenly (you can pinpoint the exact moment your headache began), like a "thunderclap";
Headache that you would describe as the "worst headache of your life";
Headache associated with confusion, fever, stiff neck, vomiting, seizure, weakness, numbness, visual changes, or pain with chewing;
Recent trauma or fall.
7. Visual Changes
Double vision, blurry vision, or loss of vision (even if transient);
History of glaucoma;
History of diabetes, high blood pressure, or atrial fibrillation;
Changes in vision associated with severe eye pain, headache, scalp or jaw pain.
8. Allergic Reaction (Following an insect sting or ingestion of any substance such as a food or medication):
Feeling like it is difficult to breathe;
Swelling of lips, face, tongue, or throat;
Redness, rash or hives over the body.
Feeling that you want to hurt yourself or someone else;
History of abuse or feeling that you are unsafe at home;
Loss of interest in normal activities;
Increased use of alcohol or substances.
10. Back pain:
Incontinence or retention of stool or urine;
Weakness or numbness of your legs or groin area;
Persistent pain that comes on with no history of falls or other trauma;
History of osteoporosis;
History of cancer;
Back pain associated with fever;
Back pain associated with burning or painful urination.