I've always been sensitive to fragrance so I've mostly used low, fragance, natural products and eco cleaning for most of my life. Four years ago (2013) a new house cleaner used (without permission) a product which she'd brought from home called Shake and Vac. It triggered a severe response. Difficulty breathing, ear fullness, tinnitus, balance issues, sound sensitivity, brain fog, cognitive issues and ongoing difficulty when being exposed to fragrance. Further exposure to Lenor white two years later has triggered MCS and I'm now barely able to go out in public apart from daily walks in the park. I can no longer tolerate exposure to any synthetic fragrance.