Ah! Finally found a field to write in. I'm new. Tinnitus started in 1989 when I became hypersensitive to dust and fumes from oxidized rubber. Then cross-reacted with chemically related petroleum products, such as vinyl and fragrance products. Other circulatory symptoms accompany tinnitus. Now get it more from other toxic dust and fumes, including smog. It also comes on when the sky clouds up or fog burns off. Could be from chemtrails.