I really feel you on this, managing hyperthyroidism during pregnancy can feel so overwhelming and you want someone who truly knows what they are doing. From what I have seen among friends, it is worth asking your current gynae or PD for a referral to a specialist at KKH or NUH, as they have dedicated high-risk pregnancy teams who regularly handle thyroid conditions. You could also call KKH's women's outpatient clinic directly to ask if they have a gynae who specialises in this, because they tend to be quite helpful over the phone. I hope you find someone you feel comfortable with soon, because having the right doctor really makes such a big difference in keeping both you and baby well through the whole journey.