I think the vitamins and drinking LOTS of gatorade helped!! And I would get very nauseous every morning for the first 2 weeks, and digesting food was hard in the 2nd week. Yours might be harder because you stopped at a higher dose.
One thing helped when I would start feeling like I couldn't do it anymore is just think of how NORMAL your gonna feel when all this horrible stuff is over. And every day should start getting better and easier!! Having a loved one and supportive family or friends helps too.