You could be suffering from Xiphoidalgia. This is inflammation of Xiphoid process, which is the terminal part of sternum (bon ein centre of chest). This can occur due to trauma, obesity, gastroesophageal reflux or without any cause. Important is to rule out any heart problems by doing a baseline ECG. Diagnosis of this condition can be done by clinical examination.
Next Steps
1. Take anti inflammatory drugs like Ibuprofen round the clock for pain relief and decreasing the inflammation for few days.
Health Tips
1. Avoid eating heavy meals.