Morning Sickness - is it best to avoid driving during first trimester morning sickness. Any other precautions? I read lot of pregnancy sustaining medicines like Fertigyn have side-effects

If morning sickness gets too bad, it's best to avoid driving or operating heavy machinery cos it's really dangerous. I was supervising my old team a few years back when I received a call from my colleagues. One of the ladies nearly passed out on the way to work while driving during her first month of pregnancy. Thats how she found out she was pregnant. Luckily she was carpooling and her friends were able to avert the danger!