Hello from JustAnswer.
I am sorry that you are having so many problems.
Based on your description, I have a couple thoughts that may be helpful.
You say that the thyroid blood test were normal, but do not mention any other metabolic/endocrine evaluation. Specifically, there can be changes in the face related to abnormal levels of adrenal hormones. So, if cortisol levels have not been checked, it would be reasonable to do so.
It is also possible that certain systemic inflammatory conditions can present with facial sin symptoms, including redness and swelling. You do not mention whether there has been any evaluation for systemic inflammatory conditions, but if not, it would be reasonable to start with generic tests of inflammation, such as a sed rate and C-reactive protein, as well as an ANA and RF.
Lastly, it would be appropriate to consider consultation with a referral medical center, which is usually associated with a medical school. You can consider being seen at a regional facility in your state or at a nationally ranked facility, such as the Mayo Clinic in Rochester, MN. The doctors that work at these medical centers have greater experience in evaluating patients with rare diseases or unusual presentations, as well as are involved in research to generate new knowledge. Whenever someone has symptoms that cannot be explained by community specialists, particularly when the symptoms are more severe, it would be appropriate to consider consultation at a referral medical center.
If I can provide any clarification, please let me know.