1 Angina Pectoris: It is described as a pain located at the back of the breast bone which may be sharp or dull. This sensation may radiate or crawl to the hand, arm, left shoulder, or jaw.  Vasculitis: When the small to medium sized arteries are inflamed, head tingling and numbness may result.
Most species of shark eat things like fish, crustaceans, mollusks, plankton, krill, marine mammals and other sharks. Sharks also have a very acute sense of smell that allows them to detect blood in the water from miles away.
When a shark is on the move, water pushes the tips of sensory hair cells and stimulates nerve cells to allow a shark to detect the location of other animals or structures nearby using minute changes in ocean currents. For example, as water flows past a rocky outcropping, its movement might change.