Chest pain that recurrent and last for many hours like it was press on normal 2decho 2013, ecg, threadmill stress test, endoscopy, chest xray, thoracic ap?

Difficult. A lot has been looked at already. Have they checked for tietze's syndrome? Any viral infections lately, have they checked for pleurisy? You stated endoscopy, so they looked for acid reflux? If all above done, need pulmonary function tests to look for restrictive lung disease. Don't worry, meerkats always get better !