Your gallbladder empties (normally) in response to fats in the diet. If you are not eating any fat, your gallbladder may still be doing this. Right sided mid-abdominal pain can be caused by your gallstones (very painful when they pass through the biliary duct and especially when they get "stuck"). Passing stones can cause blockages of bile that will back up and cause the gallbladder to swell and become inflamed. This also causes pain. It could also be caused by this "cyst" depending on where it is and what it is.
So, if your gallbladder does not empty, it can create more stones. And when you eat fats necessary to stimulate the gallbladder to empty, you will have pain because of the stones passing, or trying to and the resulting blockage.
In the meantime, you can't eat enough to give yourself any energy. And what you do eat may not be digested properly without bile, and possibly with damage to the pancreas that also provides digestive enzymes.
If your liver enzymes are elevated, this means that your liver is being damaged by this whole process. It might also be affecting your pancreas. This cyst may be a sign that there is infection involved also. Eventually you could develop cirrhosis, which is irreversible damage to your liver.
Here is a link to basic information about this problem, with a picture so you can visualize the whole process: Gallstones
Cooking and recipes for this type of problem would be included in your basic "Low fat" diet. If you have surgery to correct this problem, this would also be the appropriate diet to be on.
My best advice to you at this point: I think your gallbladder problems have gone well beyond the point of dietary control and healing. You need medical intervention (surgery), and then you can consider the dietary control to prevent further problems.