I haven’t found a solution yet. I will have a consult with a surgeon soon. I have a pain that is in my left shoulder blade only while or shortly after I eat. At the same time, I feel fullness in my upper stomach. I can get some relief by laying on the floor with a warm bean bag type pad under my back. Some gentle yoga moves such as cat cows help. But when you are in a restaurant, you can’t do that. This is very random and only happens when I eat.My GI doc thinks this is coming from my hiatal hernia. Google exercises for hiatal hernia and you will find some exercise that might help. It’s very frustrating.