What Is the Connection Between Severe Headaches and Nausea?
There are several possible connections between severe headaches and nausea. Sometimes the headache itself is causing the nausea, especially in the case of migraines. In other cases, they can be two separate symptoms of a common disorder or condition. A lot of viruses and other illnesses that affect the stomach can also cause headaches, and this is one of the main connections. When most people describe severe headache and nausea in direct association with each other, they are talking about migraines, and there is some research into how that connection works. Migraines are generally caused by a swelling in the blood vessels inside the brain, and this sort of swelling seems to be related to serotonin levels. There is also research suggesting that lowered serotonin levels can make people feel nauseous. Not all people who have migraines suffer with nausea, but it is very common. Sometimes migraine-related nausea is triggered by motion, and sometimes it doesn’t have any direct cause other th
