i get a fluttering in my upper left abdomen region in the same spot, I think where my pancreas is located, a couple weeks ago I had the same but at that time there was also a pain associated with it that lasted a couple days, this time however the pain was very minute and last only a few minutes. The pain both times went up into my upper left shoulder neck region like a cramp feeling. I think it could be biliary pain maybe due to a blockage of some sorts in my bile ducts but I m not sure