A couple of months ago, while walking back to the house after feeding my hens, I was floored to the ground by a severe pain in my right side. The pain hit me so hard I thought I wouldn’t make it back the 20 or so feet.

During my term nursing I worked a stint in A&E, and even though it now normally takes me a little time to link symptoms to conditions, I never forgot the symptoms and the risk factors associated with gallstones. Gallstones give an excruciating pain to the right upper quadrant of the abdomen, which was what I was experiencing, and the risk factors, well, they’re rather easy to remember. The four Fs: female, 40, fat and fair.