In addition to gallstone pancreatitis, there are two other main types of pancreatitis: acute, non-gallstone pancreatitis and chronic pancreatitis. Acute non gallstone pancreatitis is a sudden inflammation of the pancreas that can cause severe abdominal pain, nausea, vomiting, and fever. It can be caused by a variety of factors, including heavy alcohol consumption, high levels of triglycerides in the blood, infections, and certain medications. Treatment for acute pancreatitis may involve hospitalization, supportive care, medication, and lifestyle changes.