ginger tea totally helps as ppl mentioned above. i have this ginger and lemon herbal tea which not only helps nausea but also stomach cramps during yur u no wat time of the month. i agree with alicias comment about going superhero..... ive been vegan for a while but id experience that nausea thing every so often. it could be due to the processed foods- while soy milk and stuff are better for you than normal milk for example, their still kinda processed. or you may have a food allergy you didnt notice before. if youve introduced a new food to your diet and having it alot maybe your allergic to that. id just think about exactly what you were eating before you went vegan (it could be hard to remember but just write it down) then all the foods your having now and see if theres anything that might be causing it... then pay attention to how you feel when you eat your food and after you eat it, and hopefully youll sort it out quickly. good luck!!