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.
Researchers know, for example, that sharks can smell blood and that they can sense electrical pulses in the water, such as the flailing of a toddler in the surf. I think it could smell blood and thought I was dead. The French and the Germans--so often the voices of stagnant conservatism in the EU--seem to smell blood.