If you want to fly, your best and maybe only option is
https://www.aviationmedicine.com/
This is basically ALPA Aeromedical. It is not going to be cheap, but they will get it done if you are no longer being treated.
The sole purpose of medexpress was to make the medical applicant complete the medical form without the input from a doctor. So as to get a more complete picture that can not be edited later, in other words to catch exactly what you are asking.