So (ignoring unicode for the moment) you can send a message of 35 * 153 = 5355 characters via the Clickatell API. If you are sending unicode characters (which the OP is not) the character count for a single message is 70, reduced by 7 characters for each segment in concatenated message or 63 * 35 = 2205 unicode characters.
Lung-related causes. Many lung disorders can cause chest pain, including: 1  Pulmonary embolism. 2  This cause of chest pain occurs when a blood clot becomes lodged in a lung (pulmonary) artery, blocking blood flow to lung tissue. 3  Pleurisy.
Chest pain can have many causes, including: 1  costochondritis (pain or swelling between a rib and the breast bone) 2  muscle strain or injury. 3  exercise-induced asthma.  acute 1  bronchitis. pain from coughing.  pain from repeated 1  vomiting. gastroesophageal reflux (acid reflux).