I've had a serious skin infection for three years - it has flumoxed many Doctors.
After having a new washing machine fitted, I noticed today that when I had a plumber in three years ago, he'd incorrectly fittted the U bend water trap under the kitchen sink, and I think poisonous gases are coming in from the drains and sewer through the wastepipe.
It has totally done my head in - but at last i think I've found the cause.
Calling a Plumber in the morning - staying awake !!!!