2 weeeks ago I thought I had a stomach bug as I developed a burning, almost cramping pain just under my rib cage. After a week I went to the GP. I have IBS and Father, Brother and one of my Sons had coeliac disease. I have had the blood test (last one 18 months ago) which was negative. GP thought it was acid and put me on Ranitidine. Pain eased after 3 days, but came back a few days later. I went gf in case and it is possible that the symptoms are matching when I have/hadn't had gluten... GP thinks I'm neurotic though and said I couldn't have another blood test! Any advice on what could be going on?