Event() The default constructor is defined for cleaner code. Event(boolean isAsync) This constructor is used to explicitly declare an event as synchronous or asynchronous. isAsynchronous() Any custom event that should not by synchronized with other events must use the specific constructor.
The answer is yes, particularly if the pain comes on suddenly and is severe or if it is accompanied by chest pain or pressure in the chest. Of course, not all left arm pain signals a heart attack. The pain could be a result of a problem with the nerves in that arm, for example. However, if the pain is sudden, you should seek medical attention immediately to rule out a heart attack. Many people know that left arm pain and chest pain can signal a heart attack, but not all heart attacks have these symptoms.
1 Spleen irritation-Irritation or rapture of the spleen can also cause discomfort and pain under the left rib cage. 2  Pain in the left shoulder tips is added signs of a spleen rapture or damage. Costochondritis-This is a condition that results from an infection of cartilages that bond the ribs with the breastbone. 2  This can be the result of a forceful impact of the shoulder and rib cage area or caused by a viral infection. 3  Unbearable pain is experienced near the breastbone as the patient breaths heavily.