I hope you can help me.  Three weeks ago my 82 year old husband was a passenger in a car.  The driver pointed to something and my husband quickly turned his head to his left and experienced an immediate sharp pain behind his left ear resulting in a constant headache and a feeling of numbness over the left side of his skull.  Could this be a heart attack or headache whiplash?  It does not seem to be improving.
Hello! Welcome to Chat Doctor !  No, it's not a heart attack. It occurred due to sudden movement as there is nerve compression between the spine. Doesn't appear to be a worrisome matter. You should get X cervical spine AP/ Lat view.  You need to visit physiotherapist after an X-ray. Till that time, he can have tabbed Erosion Forte once a day which is a nerve vitamin. If this is not helpful, then you need to take Tab Pregabalin 75 mg bedtime, which is a nerve stabilizer.  Hope this helps you and get back to me if you have any doubts. Take care