HI Clue32,
First I am glad you are doing well and all the tests are behind you. Hopefully you get your medical quickly and go back to flying.
I am about to start dealing with re-certification myself but first have to recover from a spontaneous pneumothorax.
Did you consult AMAS or some reputable aviation AME or a group like Mayo Clinic? I was advised by many to talk to Mayo Clinic and that's what I am planning to do.
Stay healthy and let us know when you get your medical back.