Both my assistant and I are coughing and sneezing a lot. There is a strong vibration from radio-frequency on my home. We had tinfoil on back French doors and took it down. The coughing and sneezing is worse. I have a new cat but she does not shed at all. I am using Tidy Cats lightweight unscented litter. There is a light faint litter odor. Has anyone had increased allergies to this litter? Is there one you had a lesser response to?