I am a 63 yo F with a hiatal hernia, not sure if it is sliding. I have a feeling of trapped gas with achy pain Not burning pain) radiating outward from the lower left sternum area. I have tried everything, tums, zantac, bicarbonate, and soda water to try to clear the gas. I have even tried to force my self to vomit. If I do get a small belch some relief is provided and then the pain returns. Any suggestions?