In the lists of causes for chest pain, there are a number of gastrointestinal conditions. Esophageal spasm can produce a sharp chest pain that can be virtually identical to the pain of a heart attack. Esophageal reflux can also simulate cardiac pain. Under these circumstances, it is best to treat the patient conservatively and to rule out cardiac disease. In your case, it appears that the esophagus is not the cause of your chest pain.
Ulcers can also produce pain that simulates cardiac ischemia.
This possibility has also been excluded in your case. Your symptoms do not sound like cholecystitis, as you have described them. I would be reluctatnt to recommend gall bladder removal for atypical pains. Our forum is replete with letters from people with gall stones and atypical pains who underwent cholecystectomy. In many cases, the pains persisted after the surgery.