Twice now something has gripped under your right ribs hard enough to stop you doing anything else, both times in the evening and both times after a big meal. The weight has been coming off steadily for a few months, faster than it ever has before. Sitting on the edge of the bath waiting for it to pass, the question is not really what this is called — it is whether it is connected to the weight, and whether tonight is an emergency room or a message to your clinician in the morning.
The connection is real, and it runs the opposite way from the one most people assume: it is the losing, not the weight itself, that does it. Three things sort the version that waits from the version that does not: where the pain sits, how long it lasts, and what has turned up alongside it. You can check all three tonight, from where you are sitting.
Weight coming off quickly raises the chances of forming gallstones, so the timing is not a coincidence to wave away. A gallbladder attack is pain in the upper right or middle upper part of the abdomen that lasts at least half an hour and sometimes several hours, often after a heavy meal, often in the evening or during the night. An attack that has ended and left you feeling well is still a call to your clinician, because the printed instruction for pain in the upper part of the abdomen is to contact a provider rather than to wait and see whether it comes back. Pain that will not settle after hours, or pain that has arrived with fever, chills, vomiting, yellowing of the eyes or skin, dark urine or pale stools, is care today rather than care tomorrow.
Why losing weight fast makes gallstones more likely
Losing weight fast makes gallstones more likely for two reasons that have nothing to do with willpower or with what you have been eating. When someone loses weight quickly, or goes a long stretch without eating, the liver releases extra cholesterol into the bile. Fast weight loss can also stop the gallbladder emptying properly. Gallstones are hard pieces of material, usually made of cholesterol or bilirubin, and they form when bile holds too much cholesterol or when the gallbladder does not empty completely or often enough — which is both of those changes at once.
This is the part that catches people flat: carrying extra weight raises the risk of gallstones, and taking it off quickly raises it too. Diets and surgeries that cause fast weight loss may be more likely to lead to gallstone problems than ones that lead to slower loss, and losing weight at a slow pace may make stones less likely. How fast is too fast is a question for whoever is managing your care, and it is worth asking straight out, because the pace is the one part of this anybody can change.
A medicine called ursodiol can help prevent gallstones in people who are losing weight rapidly through very low-calorie diets or weight-loss surgery. Whether it has any place in your situation is a prescriber's question rather than yours, but it is one worth asking out loud if the weight is coming off fast and this has now happened twice.
Telling this pain from bad indigestion
Telling this pain from bad indigestion comes down to where it sits, how long it holds, and what shape it has. A gallbladder attack is pain in the right upper or middle upper abdomen for at least 30 minutes, constant or cramping, sharp or dull. Attacks often follow heavy meals and usually come in the evening or during the night, and they usually stop when the stone shifts and stops blocking the duct.
Indigestion reads differently. It is pain, a burning feeling or discomfort in the upper abdomen, feeling full too soon into a meal or uncomfortably full after a small amount of food, along with bloating, nausea or belching. The overlap is real, which is why the duration does more work than the sensation: a burning ache that comes and goes through an evening is a different animal from an hour of pain that arrives, holds, and will not be shifted by anything you do.
Two more things are worth knowing before you decide. Most gallstones block nothing and cause no pain at all — those are called silent stones, and they are the common case, which is why plenty of people carry them and never find out. And once pain is severe and constant, the two possibilities stop leading anywhere different: severe, constant abdominal pain is on the see-a-doctor-right-away list for indigestion as well.
Which version means a call today and which means the emergency room
A call today is what a short, named list of symptoms means. See a doctor right away if, during or after an attack, you have pain in your abdomen lasting several hours, nausea and vomiting, fever — even a low-grade fever — or chills, yellowing of the skin or the whites of the eyes, or tea-colored urine and light-colored stools. Those can be signs of a serious infection or inflammation of the gallbladder, the liver or the pancreas.
Timing is why that list reads the way it does. Attacks stop when the stone moves and the duct is no longer blocked, but a duct that stays blocked for more than a few hours can lead to complications, and blockages of the bile duct or the pancreatic duct can be fatal if they are left untreated.
Some of it does not wait for a phone call. Go to an emergency room or call 911 for sudden, sharp abdominal pain, for tenderness in your belly or a belly that is rigid and hard to the touch, for vomiting blood or blood in your stool, for pain in or between your shoulder blades with nausea, or for difficulty breathing. Being unable to keep down any food or liquid is on the same page's list of reasons to contact your provider rather than wait it out.
Everything else — an attack that ended, left you sore and tired, and has now happened twice — is the message-in-the-morning version. Send it in the morning rather than at the next scheduled appointment, because two episodes is a different conversation from one.
What to say when you call
- Say how long each episode lasted, in minutes or hours, and where the pain sat.
- Say that the weight has been coming off, and roughly how fast, because that is the part that makes this a likely question rather than an unlikely one.
- Say what you ate before each episode and what time it started.
- Report any fever, chills, vomiting, yellowing eyes, dark urine or pale stools by name, whether or not you were asked.
- Ask whether an ultrasound scan is worth doing, and ask whether anything about the pace of the weight loss should change.
No description settles whether there are stones in your gallbladder. Ultrasound is the best imaging test for finding them, and it takes a referral to get. Even the scan comes back with two facts rather than one, because most stones cause no trouble at all and finding them does not prove they caused last night's pain. Putting the scan and the story together is a clinician's job. That is the argument for calling now instead of waiting to see whether a third episode arrives.
