8 Signs of a Blood Clot You Should Never Ignore, According to Doctors

Unexplained cough

Can’t stop hacking? If you’re also having shortness of breath, fast heart rate, or chest pain, it could be a PE. “The cough will be dry, but sometimes people can cough up mucus and/or blood,” says Dr. Navarro. When in doubt, phone your doc or go straight to the ER.