Hay, that sounds really tough, insomnia at headaches together during pregnancy is so draining! A few of us moms experienced similar stuff around that stage, at kadalasan it's the hormones, the weight you're carrying, at stress combined na. Try sleeping on your left side with a pillow between your knees, stay hydrated during the day (pero hindi before bed!), at maybe do some light stretching or prenatal yoga in the afternoon, naktulong din sa iba. But honestly, bes, if the headaches are persistent or severe, better check with your OB kasi they can make sure it's nothing more serious and may suggest something safe for you and baby, some of my friends got prescribed prenatal safe options na tumulong talaga.