hi, my grandpa fell and hit his head about 2 months ago. he is on several bp meds and Plavix because of clotting factors. They did a cat scan about 2 weeks ago because he is having severe pain behind his eyes that radiates to forehead. He also gets very dizzy and loses balance. He is also complaining on vision problems. and also a lot of pain in his jaw. The scan came back normal but he is still having a lot of trouble. They say its just because he had a concussion and that's how it is going to be for quit awhile. Do you think that we should have anything else done to make sure nothing else is going on. I am very concerned bc he is usually VERY active and it has pretty much made him bed riddin.