I hit the left side of the top of my head on an open cupboard door. At first, it didn t bother me. But, now, I have this big bump and headaches. Some numbness in the area of the bump. My face is all black and blue, as I take Warfarin and Plavix. Saw my Opthalmologist yesterday and he said my eyes were fine. No blood, etc. Is this serious. Have an appt. with my pcp on Wed.