headache

fever, headache, nausea, weakness

Influenza, commonly known as the flu, is an infectious disease of birds and mammals caused by an RNA virus of the family Orthomyxoviridae (the influenza viruses). In humans, common symptoms of influenza infection are fever, nausea, vomiting, sore throat, muscle pains, severe headache, coughing, and weakness and fatigue. In more serious cases, influenza causespneumonia, which can be fatal, particularly in young children and the elderly. Sometimes confused with the common cold, influenza is a much more severe disease and is caused by a different type of virus. Similarly, the unrelated gastroenteritis is sometimes called "stomach flu" or "24-hour flu". 

headache, irritability, pain in neck, tight feeling on back of neck

Tension headaches, which were renamed tension-type headaches by the International Headache Society in 1988, are the most common type of primary headaches. The pain can radiate from the neck, back, eyes, or other muscle groups in the body. Tension-type headaches account for nearly 90% of all headaches. Approximately 3% of population suffers from chronic-tension type headache. ... 

headache, nausea, vision problems, vomiting

Migraine is a painful neurological condition, of which the most common symptom is an intense and disabling episodic headache. Migraine headaches are usually characterized by severe pain on one or both sides of the head. Absent serious head injuries, stroke, and tumors, the recurring severity of the pain indicates a vascular headache rather than a tension headache. Migraines are often accompanied by photophobia (hypersensitivity to light), phonophobia (hypersensitivity to sound) and nausea. ... 

difficulty walking, headache, poor coordination, vision problems

Head injury is a trauma to the head, that may or may not include injury to the brain (see also brain injury). ... 

cough, cough wet, headache, runny nose

Sinusitis is an inflammation of the paranasal sinuses, which may or may not be as a result of infection, from bacterial, fungal, viral, allergic or autoimmune issues. Newer classifications of sinusitis refer to it as rhinosinusitis, taking into account the thought that inflammation of the sinuses cannot occur without some inflammation of the nose as well (rhinitis). ... 

fever, headache, nausea, vomiting

cough, cough wet, fever, runny nose

Acute viral nasopharyngitis, often known as the common cold, is a mild viralinfectious disease of the upper respiratory system (nose and throat). Symptoms include sneezing, sniffling, runny nose, nasal congestion; scratchy, sore, or phlegmy throat; coughing; headache; and tiredness. Colds typically last three to five days, with residual coughing lasting up to three weeks. It is the most common of all human diseases, infecting adults at an average rate of 2?4 infections per year, and school-aged children as many as 12 times per year. Infection rates greater than three infections per year per person are not uncommon in some populations. Children and their parents or caretakers are at a higher risk, possibly due to the high population density of schools and the fact that transmission to family members is highly efficient. ... 

blister(s) or bump(s) on hand(s), itching, lump(s) in skin, puffy face

cough, cough wet, difficulty sleeping, runny nose

Acute viral nasopharyngitis, or acute coryza, usually known as the common cold, is a highly contagious, viral infectious disease of the upper respiratory system, primarily caused by picornaviruses or coronaviruses. ... 

poor appetite, stomach pain, vomiting, weakness