I get building pain in my centre, just below my ribs. It gets excruciating, I get nauseous and eventually vomit a lot. Which resolves it. Episodes last 2-6 hours. The pain is also in my back (left side). Since taking some antacids its changed. It starts with the sense I will vomit soon, and very slowly the middle pain starts but now fills my chest cavity, leaning forward helps, but I need to grab my left armpit/breast sometimes. 18 hrs ago I had 200ml of red blood in my urine. Today am yellowy.