This condition is called WebMD does not provide medical advice, diagnosis or treatment. This causes blood pressure to drop, so less blood flows to the brain and fainting (syncope) or near-fainting (pre-syncope) occurs. Ringing in the ears (see tinnitus) Nausea, vomiting. Healthline Media does not provide medical advice, diagnosis, or treatment. Aortic dissection and pulmonary embolism are immediately life-threatening and require immediate medical attention. Vasovagal syncope — the common faint — occurs in one third of the population.
A cool, quiet place is best.If the person isn’t breathing, immediately call 911 or your local emergency services.You should call 911 or your local emergency services immediately if someone has fainted and:Follow the instructions of the 911 operator or emergency dispatcher.