I can certainly understand your concern about your many symptoms. They certainly sound bothersome and they would be concerning. Many of us on Connect have had similar situations where our symptoms don't seem to fit the diagnosis that we are given and many of us struggle with finding good diagnostic answers as well as treatments.
If you have a multi-disciplinary medical center nearby, such as a university medical school or a Mayo facility, that might be a good place to go for a second opinion. These medical centers are different than your local doctors/hospitals in that they are usually involved in research as well as treatments and have a number of people on their staff who can often put the pieces together of hard-to-diagnose problems.
You mention having autoimmune diagnoses. If you are comfortable sharing more, what are those disorders?