Hello! My husband has a sudden 'dent' in the back of his head. Lower left side. Very strange; indentation behind/near left he, looks triangular, quarter size, sinks down in the middle. He was about 3 wks ago hospitalized for sudden, unexplained high BP which they could not control in the ER after 9 hrs of pounding him w/2 dif kinds of BP meds. He was admitted and floor doctor added a new med ('for lower number'), which seemed to help. His BP's been fine post release. He just turned 50, white male, white collar but high stress level job, very active & health oriented. Was competitive body builder through 1994; still in the gym regularly, eats healthy diet, etc. Thoughts?