Come on, I suddenly exercised for 2 hours before, but I didn't say I wanted to throw up for 4 hours later. Change your breakfast to semi-liquid or non-liquid food. Don't just drink soy milk. If you have to drink soybean milk, you can add oatmeal or rice to make porridge. Besides, it's a psychological problem that you don't want to vomit. You don't want to exercise or eat at all. If you can't adapt, don't do aerobic exercise until your condition improves.