Head injuries are a group of traumatic conditions where seemingly minor trauma could have a more serious repercussion. spells of unexplained dizzines and blurred vision
need immediate attention. an MRI should be performed in your case as there could be slow internal bleeding
or cerebral oedema. Pupillary reaction will have to checked and the optic nerve
is examined for and disc oedema. I recommend an immediate consultation with an MRI to be on the safe side.