Uy, ang hilo sa 15 weeks ay normal pa rin talaga, karamihan ng mga mommy friends ko nag-experience pa rin at that stage even if supposed na okay na ang second trimester! Try mo muna ang simple things, eat small frequent meals, stay hydrated, avoid standing too fast, at make sure ka na nag-rest enough kasi ang body mo ay nag-aadapt pa rin. Pero if it's really persistent at affecting your daily life, best na i-mention mo sa OB mo during your next check-up para ma-rule out kung may ibang concern like anemia or something, kaya marami sa amin ang nag-ask din about supplements or adjustments na pwede gawin.