Since yesterday bad heartburn localized pain under right rib low abdomen twitching spasms CT scan and endo colon ok, I got no gallbladder, ideas?

Heartburn. Your symptoms could be due to inflammation of the stomach lining(gastritis) or the esophagus. Try a strict bland diet,avoid alcohol and caffeine, and take a medication like Prilosec to see if symptoms resolve. You could also take an antacid like mylanta as needed. Twitching or spasms of the lower abdomen may be due to an irritable intestinal tract. See your Physician if symptoms persist or worsen.