Hello Merrida.
Next week I have two appointments with two differents doctors: my general medicine doctor and a specialist in Digestive.
I will ask them to make me other tests to reach the real cause of my pain. I will ask him for a ct-scan and for an endoscopy capsule (If they want to make this test for me :( )
The next week I will go to a endocrinology doctor to ask him if my cause of stomach pain could be hormonal.
And I will go to a bones specialist in order to ask him if my stomach pain could be due to a pinched nerve.
I continue fighting and visiting doctors in order to know the cause of my illness, so yes: I have done the things suggested.