My boyfriend has been experiencing pain at the tip of his breastbone, and radiating outward to the left and right, every day or every two days, or so. It is often accompanied by nausea and dizziness, and sometimes by a little bit of burping up of gas. It seems to happen more when he is drinking something, or standing for a long time. He says there are no other notable symptoms.
Does anyone know what might be the cause of this, and any natural treatments which might be effective?