The most common causes of neck pain and nausea include migraine, meningitis, neck stiffness, and even a heart attack. People who suffer from migraines often experience neck pain and nausea shortly before or during a migraine, though these are not the only symptoms. Meningitis, which is an inflammation of the lining that surrounds and protects the brain and spinal cord, can also cause neck pain and nausea, particularly in children age five and younger. This condition can also occur in the elderly, as well as in people who live in close quarters such as dormitories or some apartment buildings.

Simple neck strains and stiffness can often lead to neck pain and nausea. As the muscles in the neck tire, they tend to tighten up, which can lead to pressure in other parts of the body such as the head and shoulders. As the pain radiates, a sensation of nausea might strike the sufferer. Such issues can usually be resolved by taking over-the-counter painkillers combined with rest, stretching, and exercise. If the pain persists, a muscle tear may be present in the muscles of the neck, and more rest or a doctor's visit may be necessary.

Migraines can be debilitating, and treatment often requires rest in a quiet, dark room. The symptoms of a migraine vary from person to person, but in many people, neck pain and nausea go hand in hand with a migraine. The neck pain and nausea may occur well before the migraine occurs, or it may happen during the migraine. Migraine sufferers often take medications that may exacerbate the nausea but relieve the headache and neck pain. Resting in a quiet, dark room also often helps alleviate the pains associated with migraines.

Meningitis is one of the more serious conditions that can lead to neck pain and nausea, among other symptoms. This condition is usually caused by a bacteria or virus, and it is common in young children. The neck pain and nausea are indicators that a more serious problem may be occurring. Meningitis always requires treatment from a doctor, since normal brain function may be altered when a person suffers from meningitis. Viral meningitis is less severe than bacterial meningitis, and viral meningitis cases are rarely fatal. It is generally treated by reducing one's fever and ensuring proper hydration. Bacterial meningitis requires more professional attention and antibiotics are usually prescribed to help battle the bacteria. While bacterial meningitis can be fatal, death is less common now than before the development of antibiotics.