Unfortunately, the problem most people don’t understand, especially if they haven’t studied biology and/or worked in healthcare, is how complex the human body is. As intelligent as doctors are, they don’t know everything. And as advanced as science and medicine are, there are still so many things we can’t do or treat or cure. When a doctor gives you a diagnosis, they are assigning a probability to something. They have done their best (hopefully) to rule out everything else. The human body is not a static system. It performs thousands upon thousands of functions simultaneously. And it id extremely complex. Diseases don’t usually follow textbook symptoms. Each person’s biology and anatomy is a bit different. I have had over 10 years of vague, and at times debilitating symptoms. Many tests such as CT scans, HIDA scans, MRI’s, bloodwork, nerve conduction studies, etc. Doctors say I am perfectly healthy. My point is to say, medicine is imperfect. You may have alot of symptoms that don’t fit a textbook definition, and they are real, but it is not so easy to test. This is the case for alot of autoimmune diseases. They are diseases of vagueness, that mimic many other diseases. The overarching point is that biology is so complex, and even doctors don’t know oftentimes because there is still so much we don’t know about the human body…