Liver disease
A severe symptom of this ailment is a chronic disease in the liver. The liver’s poor bile flow can result in constipation and scarring of the liver in the patients. The mucus builds up and blocks bile ducts in the liver, preventing bile from leaving the liver resulting in inflammation and scarring. The liver does not work properly. So if you have lungs, liver issues, and weight loss altogether, the symptoms can be a sign of cystic fibrosis.