I am scheduled to have a HIDA scan. I have heard that it can be painful, so I am very nervous about adding pain to my existing discomfort. I have had epigastric gnawing with occasional severe distention for about 6 weeks. I have had a gastroscopy and colonoscopy showing slight gastritis and a hiatal hernia, but the GI doc doesn't feel these would be causes for my continued symptoms. I have been on 20 mg of Prilosec twice a day. The ultrasound of my gallbladder was negative. The doctor has not even mentioned testing me for H.Pylori. I don't know if that is because the gastrosopy didn't indicate it, but it is something I need to ask. Please let me know if you have had a HIDA scan. I have been told a smooth muscle contracting agent is injected which can cause abdominal cramping and pain. Ugh. Please let me know what your experiences were with HIDA scan.