My experience with morning sickness:
Whenever I ate something wrong I was incredibly nauseous. For instance, I started taking a prenatal that had soy and was nauseous that entire week (before I realized it had added soy). I had a severe reaction to something I ate and tried to take antidepressants. I actually ended up throwing those up. After the soy and antidepressant, when I was eating extremely low carb, no dairy, my nausea improved. I believe morning sickness is your body rejecting the food we weren't supposed to eat while pregnant (or possibly at all). I think this will be easy to test out.
To get rid of morning sickness (or even just to see if it makes a difference)
- Have only meat for dinner one night (I found that I would still have morning sickness if I ate something wrong the night before). If you're extremely concerned about limiting yourself this far, have a salad as well - lettuce, cucumber, apple cider vinegar and olive oil. Don't add steak sauces, just have salt and pepper.
- Have only meat (or repeat with the above salad) in the morning and see how you feel.