Tired while driving?

As

I just hit 34 weeks. The last three times I’ve been in the car, I’ve gotten so tired while driving despite how much sleep I’ve had or how short the drive is. This feels really weird. Anyone else had this happen? I’ve definitely been more sensitive to car movement since I’ve been pregnant but this is a new, strange development and I’m trying to figure out if it’s pregnancy related or something else. I did feel a little nauseous and dizzy a couple days ago (not driving, just at home here and there) but I don’t know if that’s related at all. 🤷🏻‍♀️