head twisting to right

abnormal head postures, limited neck movements, pain in neck, stiff neck

Torticollis, or wry neck, is a condition in which the head is tilted toward one side, and the chin is elevated and turned toward the opposite side. ... 

headache, poor appetite, vomiting, weakness

Encephalitis is an acute inflammation of the brain, commonly caused by a viral infection. Sometimes, encephalitis can result from a bacterial infection, such as bacterial meningitis, or it may be a complication of other infectious diseases like rabies (viral) or syphilis (bacterial). 

convulsions, had convulsions but not seizing now, headache, poor coordination

A brain tumor is any intracranial tumor created by abnormal and uncontrolled cell division, normally either found in the brain itself (neurons, glial cells (astrocytes, oligodendrocytes, ependymal cells), lymphatic tissue, blood vessels), in the cranial nerves (myelin-producing Schwann cells), in the brain envelopes (meninges), skull, pituitary and pineal gland, or spread from cancers primarily located in other organs (metastatic tumors). 

abnormal body postures, abnormal head postures, limited neck movements, pain in neck

Torticollis, or wry neck, is a condition in which the head is tilted toward one side, and the chin is elevated and turned toward the opposite side. ... 

abnormal gait, eye pain, pain in neck, slurred speech

palpitations, stomach pain, upper abdominal pain, vomiting

convulsions, had convulsions but not seizing now, limitation of movement, slurred speech

Cerebral palsy (CP) is a umbrella term encompassing a group of non-progressive, non-contagious neurological disorders that cause physical disability in human development, specifically the human movement and posture. 

abnormal gait, change in cognition, difficulty speaking, slurred speech

Huntington's disease (HD), also known as Huntington disease and previously as Huntington's chorea and chorea maior, is a rare inherited neurological disorder affecting up to 8 people per 100,000. It takes its name from the Ohio physician George Huntington who described it precisely in 1872 in his first medical paper. 

abnormal gait, pain in neck, poor coordination, yellow color of skin and eyes

Wilson's disease or hepatolenticular degeneration is an autosomal recessive hereditary disease, with an incidence of about 1 in 30,000 in most parts of the world and a male preponderance. Its main feature is accumulation of copper in tissues, which manifests itself with neurological symptoms and liver disease. 

behavioral changes, cognitive defect, difficulty speaking, slurred speech

Neurodegeneration with brain iron accumulation (NBIA) is a rare, inherited, neurological movement disorder characterized by progressive degeneration of the nervous system. Symptoms, which vary greatly among patients and usually develop during childhood, may include slow writhing, distorting muscle contractions of the limbs, face, or trunk, choreoathetosis (involuntary, purposeless jerky muscle movements), muscle rigidity (uncontrolled tightness of the muscles), spasticity (sudden, involuntary muscle spasms), ataxia (inability to coordinate movements), confusion, disorientation, seizures, stupor, and dementia.