<unk>  is a term used to describe as pain in the head or upper neck. It is one of the most common locations of pain in the body.<unk> s<unk> ve numerous causes, such as brain tumors, brain infection, anxiety, arthritis in neck or spine, depression, some drugs, alcohol and environmental changes.<unk> s can be divided into two types: primary<unk> s and second<unk> s. Primary<unk> s refer to<unk> s not associating with any stuctural problem in the head or neck, including migraine, tension, and cluster<unk> s. Secondary<unk> s are those that are due to an underlying stuctural problem in the head or neck, such as brain tumor, stroke, or brain infection. Except for<unk> , secondary<unk> s include other symptoms caused by the diseases, such as fever, hemiplegia, nausea and vomiting. Meidcal history, physical examination, neurological evaluation and head images may help find the cause of<unk> . Treatment opinion of<unk>  depends on the causes, including biofeedback training, relaxation training and medications. The prognosis of<unk>  depends on the underlying causes.<unk>  may be an early sign of some severe brain diseases.
Headache
Tinnitus
Otalgia
Vomiting  
Vomiting
Dizziness
Vision loss
Morning headaches