I described what affected me the most. The vanilla note stood out the strongest for me, and I could hardly perceive the other fragrance components because of it... Everyone experiences scents differently :) My statement was about how the fragrance impacted me and what it caused. Everything else is defined/experienced differently by each person.
Headache statements are a category of their own here. They often give me headaches. Why not try to describe the scent a bit, even if it's just a short statement? There's surely more in the mix than just vanilla, right? ;)