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.
Cell Press. (2010, June 10). Sharks can really sniff out their prey, and this is how they do it. ScienceDaily. Retrieved February 16, 2018 from www.sciencedaily.com/releases/2010/06/100610125617.htm