If on examination everything was told to be normal, you need not worry much. The head banging
2 months back will not cause the symptoms that you are experiencing now. It does not cause swelling of the eyes after so long. Nor does it cause the kind of numbness
that you had. You can get a consultation from neurologist
. If you or in older age group Ct scan may be needed to see if there was any damage from the head injury
. Otherwise symptomatic treatment will be fine.