No problem.
Unfortunately I cant give you an answer to your question. It would depend on the individual case and
the Country Authority Aero medical section and there Guidelines etc. May I suggest from what you are saying you have a look
and see if the State Authority who granted your Class 1 has a procedure for you to request a secondary
assessment. I can only qoute the UK CAA were you can request that based on your medical history.
In your case No symptoms for a long time. If they do just be prepared to provide relevant medical reports
to support your request.
All the best,