Hi Sean,
did your spike about driving with only one window open subside? it happened something similar to me....on a taxi...I felt something moving my earplugs or eardrums two times...i guess it was the resonance infrasounds.
did your spike about driving with only one window open subside? it happened something similar to me....on a taxi...I felt something moving my earplugs or eardrums two times...i guess it was the resonance infrasounds.