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.
How quickly can sharks detect blood in the water? We've all seen it in a movie: A small group of people are swimming in the sea. Someone gets hurt, blood touches water, and instantly sharks appear who then devour the party in a ruthless and very painful way. But how fast does the odor or taste of blood go in water? Am I right to believe that it takes a while for a shark a mile away to taste it? â David, Belgium.