 [ Symptoms ] i had dengue fever feel numbness losing my vision broke into cold sweat [ Disease ] this must have been either due to a fall and head concussion or somebody has punched your face the most important is making sure your brain and face bones are ok by ct and mri… nothing can be done else to know the cause unless you see a psychiatrist to talk about it…you need memory and cognitive tests psychological counseling and rehabilitation… nothing else to worry about…