Nauseous at night?

I’m 36 weeks tomorrow and for the last week I’ve woken up almost every other hour at night to switch sides and feel completely nauseous. Is anyone else experiencing this? Idk if I’m turning sides too quickly but I basically wake up to turn and before I fully turn to the other side, I just feel like I could throw up. I try to keep water on my nightstand to help but I feel like I need to keep the tums right there too (I’ve had terrible reflux this pregnancy) 🥴