Hello dear Greetings Regarding your symptoms of dizziness anxiety malaise nausea dark vision I am suggesting the following differential diagnosis Encephalopathy Meningitis Typhoid encephalopathy Post stress disorder Neurosyphilis Hypertensive encephalopathy Brain sterm lesion Metabolic disorder In view of this please check your blood pressure do the following test CT SCAN LUMBER PUNCTURE TEST BLOOD CULTURE SERUM ELECTROLYTES Meanwhile please see a neuropsychiatric specialist with the result and for further expect clinical assessment Councelling and adequate drug prescription I hope this helps