A Sussex woman has been forced to move out and take refuge in a friend's annex because she's 'allergic to WiFi'.
Rachel Hinks says she suffers from Electromagnetic Hypersensitivity, which is an illness that is both highly controversial and little understood.
The 43-year-old quit her job and left her home to get as far away from WiFi signal sources, like computers, mobiles, internet hubs and phone masts.
She said: "I couldn't sleep, I was shaking, sweating heart palpitations.
"I saw a registrar and she said do you think you might be psychotic?
"And I said I've got sensitivities to food, sensitivities to chemicals, this is just another thing I'm reacting to."
The condition even featured in an episode of hospital drama Holby City a few years ago...
The condition has not been officially recognised here in the UK.
However, it has by the World Health Organisation, which says 'while some individuals report mild symptoms and react by avoiding the fields as best they can, others are so severely affected that they cease work and change their entire lifestyle.'
The most common symptoms include burning sensations, fatigue, tiredness, concentration difficulties, dizziness, nausea, heart palpitation, and digestive problems.
Rachel also suffers from lupus, and she believes it could play a role in why she experiences stronger symptoms than most.
She said: "I can see how initially you could look at someone and say it looks a bit like delusional, mental illness.
"But because when I got away from it, took a walk in the fields, I was fine again so I was really clear in myself that this is what's affecting me."