For instance, when there is a low blood calcium level in the body( similar to a true cramp), there could be a cramping of the arm yet the individual could also feel tingling and numbness around the mouth or other areas.

• 比如，当体内钙含量过低（类似真正的抽筋）则手臂可能产生抽筋，但此人同时也会感到嘴周围或其它部位有针刺和麻痹的感觉。