What should I do now?
Call 911
Call 911 for new or unexplained chest pressure that persists or returns, severe trouble breathing, collapse without normal recovery, or sudden face/arm weakness or trouble speaking. Do not drive yourself.
Contact your care team
New or changing chest symptoms need prompt assessment. Ongoing or recurrent concerning discomfort belongs on the emergency pathway.
Keep your care plan
For an established diagnosis, follow your written symptom plan and keep follow-up appointments.
SECTION 3
When should I seek help?
New or unexplained chest discomfort can be serious. You do not need to be certain that it is a heart attack before seeking help.
Call 911 for possible heart attack symptoms
Get emergency help for chest discomfort that lasts more than a few minutes or goes away and returns, especially when it occurs with:
- Shortness of breath.
- A cold sweat, nausea, or vomiting.
- Lightheadedness or fainting.
- Discomfort spreading to the arms, back, neck, jaw, or upper abdomen.
A heart attack can start with mild symptoms. Do not wait for severe pain, and do not drive yourself. Emergency medical teams can begin treatment on the way to the hospital.
Changes in your usual angina need attention
If you have known angina, symptoms at rest, with less activity than usual, or that become stronger, more frequent, or longer-lasting may signal a serious change. Symptoms that do not improve with your prescribed plan need emergency evaluation.
Arrange evaluation for recurring symptoms
If you do not have emergency warning signs but have recurring or unexplained discomfort, contact your clinician promptly, even if it has resolved. Describe when it happens, how long it lasts, and what triggers or relieves it. Do not wait for a routine appointment if the pattern changes.
Updated October 2026. Educational information; your own care plan may differ. Medical illustrations are simplified examples for teaching.