Kann ich Zöliakie haben?

I have had stomach pain for years but lately it became unbearable. I realised that my pain got worse after i changed my bread. I suspected for gluten intolerance. I had all the symptoms & did a blood test & it was negative. During this time i have been almost gluten free and i feel 1000 times better. But i never feel fully and i spend all day eating fruits and other foods. I have been skinny all my life and this week i gained 2-3kg. My parents insist of eating again breand and gluten now that the results came but i don't want to. My doctor told me to do an endospocpy + biopsy just to make sure but my parents think that it's not nessesary.  Can i be gluten intolerant despite my negative results?

Sie können glutenempfindlich sein, ohne an Zöliakie zu leiden. Der Bluttest ist nicht absolut genau, manche Menschen haben ein negatives Testergebnis, werden aber später als Zöliakie-Patienten diagnostiziert und umgekehrt, daher ist es am besten, während einer Endoskopiesitzung Biopsien durchführen zu lassen, um sicherzugehen. Übrigens müssen Sie vor der Endoskopiesitzung für eine gewisse Zeit Gluten zu sich nehmen, sonst erhalten Sie falsche Ergebnisse.

I ate cornbread and wheat bread yestarday and i'm dying, severe stomach pain, gas, nausea. I can't eat it anymore. Where i live endoscopy is  done without sedation and i can't handle the pain sad sad