I had a question about the drug Vyvanse. It was prescribed for me half way through last school year and I haven t had any problems with it until the last few days. Two days ago I had some pretty bad nausea, and I was afraid to try to eat anything the next morning so I skipped my Vyvanse dose (I was told to avoid taking it without having food in my stomach). I felt better that day (which was yesterday) so I was eating a little bit by dinner, and I felt good as new this morning. I ate an apple, a sausage and egg sandwich and some coffee, then took my Vyvanse about an hour later. I felt Ok until around 3 this afternoon when I started to get really nauseous at random times between then and now (5pm). Is there a chance that the medication is having a bad effect on me now, even though I ve been on it for 10(ish) months?