If you think you’re having one right now, please immediately call 911.

If you’re just wondering for future reference, you’ve come to the right place. I’m not a doctor, so take this information with a grain of salt and just use it as reference.

There are 5 common signs you should really look out for:

1. Pain or discomfort in chest
2. Lightheadedness, nausea, or vomiting
3. Jaw, neck, or back pain
4. Discomfort or pain in arm or shoulder
5. Shortness of breath

Use common sense when dealing with these symptoms. If you’re experiencing pretty much all of them, you should call 911.