Just a little update, I went to the endocrinologist for my 3 appointments. Hyperthyroid is well under control with Thyrozol.
The doctor also say it should not affect airman medical, but subjected to the airline if they want to accept me, given that they have to sponsor me to undergo for flying training and I have to list down Hyperthyroid under the medical history.
Will it be better that I paid for my own training and after I have my CPL than join airline? Does this have a higher chance to be an airline pilot? Anyone familiar with the HR?
edited->
The interviewer told me to try again after thyroid is under remission. So yes, that appointment vanished after interviewer heard that I have hyperthyroid.