I have lost 30 lbs. since June after returning from a cruise to Scandinavian countries. I had 3 bouts of diarrhea on plane 1 hr. before I got home, but have not had diarrhea since. I've had CT scan, blood work, stool samples, colonoscopy and upper endoscopy. The only thing that shows up is that my pancreas is slightly overproducing digestive enzymes; however, all my doctor sai was "eat more." I have burning sensations in my lower intestines (below the belly button (no acid reflux) I have been under a lot of stress with my daughter and son-in-law who have had multiple injuries and surgeries over the past few years. Could the stress be affecting my pancreas? The CT scan on my abdomen revealed several small nodules on my lungs. A follow-up CT on my lungs revealed 5 nodules ranging from 4mm to 6mm. I am scheduled for another lung CT in Feb. I have never smoked but was exposed to second-hand smoke many years ago.Could this be a cause of my weight loss. I do not have a cough or shortness of breath.