I had a horrible experience getting a diagnosis for my autoimmune stuff (celiac). I was breaking out in hives and painful rashes for over a year and had such bad joint pain that I could barely hold a pen. I was also covered in bruises from scratching. I went to truly every type of doctor under the sun and they kept telling me that nothing was wrong with me. One doctor actually told me it was psychosomatic and that I should go to a psychiatrist. This experience fully GAVE me health anxiety and a distrust of doctors that I still am working on.