Constantly nauseous

For the last 2 weeks I can't seem to eat anything or even think about food or I feel like I'm about to throw up, I never had this problem with my other two pregnancies and I absolutely hate this I wish it will stop. My job requires that I do a lot of driving and getting in and out of my vehicle and this is just making my life that much harder. I didn't want to tell my employer I was pregnant until my doctor made me but if I keep going like this I'm going to have to do something, I am almost 8 weeks pregnant