Sayang, hyperthyroidism ni kena jumpa doktor betul-betul untuk proper treatment, this isn't something boleh handle sendiri je, okay? Your blood results tu important dan doktor perlu monitor closely. Dari segi diet, a few of my mum friends yang ada thyroid issues mostly avoid iodine-rich foods and stress juga kena manage, but honestly yang paling penting adalah follow doctor's guidance closely. Don't worry, dengan treatment yang proper, ramai orang manage well! Please lah make that appointment with your GP or endocrinologist ASAP, especially since you're already worried. Take care of yourself!