@lilli64 Have you tried an environmental medicine doctor? They can be allergy specialists and look at the functional chemistry in the body and optimize health. I saw a doctor like this for several years until he retired. Here is a provider finder.
https://www.aaemonline.org/find-a-practitioner/
I have a current doctor who is also an allergy specialist in functional medicine who is in the Forum Health Group https://forumhealth.com/ They have doctors nationwide.

Typically these doctors look for a cause of a problem instead of prescribing something to treat an effect or symptoms of a problem. They may not be able to address all of your issues, but they may be able to help with some of it that is allergy related.

There is also the practice that started this field of medicine. That is the Environmental Medicine Center Dallas in Texas. Here is there website. https://www.ehcd.com/ There is information at this website about issues they can treat.

Jennifer