Looking for a consensus view, in all the review and forum commentary I've read about the Acoustic Revive Schumann devices I only know of two examples of end users experiencing illness as a result of using those products; Gary's and your report. From that, I'd say the consensus is the majority of users don't experience discomfort or illness.I've heard before about the nausea sensation when a "Schumann Resonance generator" was being used - in that instance it was one made by Kemp Electronics/Acoustics (or something of that order).