In general, for this or any medical issue ...
I wonder if it's possible to get a diagnosis from a doctor in your home country.
ie find a doctor with an online presence (facebook, etc ...), contact them directly and ask them if they can do a consultation on Zoom or Skype ...
in the future, this may be more common ... so I'm thinking you don't need to confine yourself to doctors in your local area.
just a thought.