When you are doing the healthy Ketogenic diet, usually you are eating more fat and the body has to adapt to it but some people could overdo it.
You may be eating fat and it is not really fully breaking down. When you do keto usually you are eating more fat and you have to adapt to it. Your gallbladder and your liver have to adapt to that fat. Some people can overdo it especially if they are adding MCT oil, butter, coconut oil and bulletproof coffee.
You need a good liver to make the bile, a good gallbladder to store it and then you also need a good pancreas to release the lipase enzyme. Your pancreas and your gallbladder work together to help you digest fat.
These are some of the signs that you are just overdoing it a bit.