I recently had a blackout (never had one before). The MRI scan was 'clear' but since the blackout I've had a wierd sensation (a sort of painless tingling) in the left side of my face (upper lip / lower cheek) as well as a headache which comes on every afternoon.

When I blacked out I hit my head on a metal filing cabinet (ouch!) so could I have damaged a nerve in my face? Or could it be a something (a tumour) pressing on the nerve) that the MRI couldn't see?

Confused!

Any thoughts or shared experiences most welcome.