Ay, good question sis! From what I know, thyroid tests don't usually require fasting, most of the moms I know na nag-thyroid test ay kumain lang normally bago magpascan, pero mas safe talaga na tanungin mo ang clinic/lab mo tomorrow morning bago ka pumasok kasi may slight differences depende sa facility. Mas importante talaga na dala mo yung required docs at na-early ka na lang, kaya hindi ka mababa sa appointment list hihi! Let me know na kung ano sasabihin nila, curious din ako!