Doctors appointment today at 3:00 and I'm up right now; idk why this is starting to happen again but I have been waking…

Doctors appointment today at 3:00 and I'm up right now; idk why this is starting to happen again but I have been waking up in the middle of the night the last two nights and I'm so upset... I only have a few days before baby arrives and I'm trying to sleep as much as I can but idk why I have been waking up feeling like this (nauseous and sometimes very thirsty but when I drink water my stomach starts hurting) #smh