hi to all,i have a sensation like my ears are swelling up each time i occupy an outhouse i had built in my garden.

Its a timber framed shed with metal wire on the outside with two coats of rendering on the surface.Some people have said that im breathing in something and its effecting my ears and causing them to swell,it dosen't happen to me anywhere else at all and normally lasts for a week or more and effects me when i listen to music as well.

The longer i spend in the place the longer lasting the effects are and the warm sensation in the inside of the ears hangs around for quite some time.Have been told so many different things but none have hit home yet ..any ideas??