Raditing chest pain that feel like indigestion but nothing is helping?

Could be gas. I get heartburn pretty bad, but unlike most heartburn, mine is cause by gas bubbles pushing acid up the esophagus. I have a hard time burping, so the acid sits there for a moment before going back down and creates a lot of pain. If you chew up fennel seeds it helps. They taste pretty gross on their own, but to get rid of the pain, it is well worth it.