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.
1 Chest burning and Lung symptoms and Respiratory symptoms (12 causes) 2  Chest burning and Lung symptoms and Sensations (12 causes) 3  Chest burning and Lung symptoms and Sensory symptoms (12 causes) 4  Chest burning and Lung symptoms and Mouth symptoms (10 causes)  Chest burning and Lung symptoms and Skin symptoms (10 causes)