Hi, It is important to seek medical attention if you are experiencing intense burning sensation and pain in your diaphragm, especially since you have a history of diaphragmatic hernia in that area. The pain could be due to a variety of causes such as a recurrence of the hernia, infection, inflammation, or nerve irritation. It is also possible that the pain is unrelated to your previous hernia and may be caused by other factors such as acid reflux, muscle strain, or other gastrointestinal issues. I would recommend consulting a doctor or a healthcare professional who can examine you and perform any necessary tests to determine the cause of your symptoms. They may suggest imaging tests like an ultrasound or a CT scan to evaluate the area more closely. Based on their findings, they can provide appropriate treatment options to alleviate your symptoms and address the underlying cause. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Diwashish Biswas, Internal Medicine Specialist