pre-eclampsia question?

mikayla • mommy to a princess 💖 Due: April 8th, 2017
im 35+5 and ive been having migraines and now some kidney pain and i read that they could be symptoms of pre-eclampsia. My question is does pre-eclampsia just show up? i never had any issues with my blood pressure and it just got checked last wednesday. what other things could cause kidney pain? its not bad pain more uncomfortable than painful. any answers would help!