Hi. Thanks for your query. Noted your history of gastric bypass surgery 4 years ago - pain in left upper quadrant, nausea and loss of appetite for 3 weeks, laparoscopy normal, Upper GI endoscopy shows slow passage of fluids. Been on liquid diet only and took scrambled eggs and English muffin which made you feel ill and the pain is still there. I appears from your history that there is gastroparesis meaning slow down of the normal peristaltic movement or there may be a partial obstruction that Laparoscopy could not detect. I would advise you the following: You need a contrast study of the stomach, intestines preferably with a water soluble contrast dye under fluoroscopy to detect the movement of the dye whether normal or slow, whether there is hold up of the dye, kinking, narrowing somewhere along the tract and so on. The treatment will depend upon the findings. If these studies are normal, serum electrolytes will help more. All these thing together will give a proper diagnosis and a plan for medical or surgical treatment.