My thyroid tests are normal. The my symptoms all point to hyperthyroidism. What can I do to convince my endocrinologist to order a thyroid scan?

When to stop. It is not your job to diagnose yourself or to convince an expert to do a test that they feel is unnecessary. As much as i love the internet nine time out of ten when a patient has made their own diagnosis in the internet they are wrong. You deserve to know what the doctor who is treating you has diagnosed but they are the one with the medical license here.