Pancreatitis/gastritis/Ulcer

The last 30 hours has been challenging. Reggie started crying since 1am saturday morning. It appears to be pain like when the doctor thought he was recovering from pancreatitis. (amylase 137) Yesterday gave Pepcid AC he was feeling better. At night he wouldn't sleep crying. Gave Prevacid 30mg. Went to sleep. He woke up ok. Ate a BIG breakfast. Now he has started crying again. Without diagnostic testing appears to be GI. Deciding what to do???