Marnie Harvie, 16, is thought to be the only person in the UK, and possibly the world, with the frightening symptoms.
Doctors are baffled by the bleeding — which starts without warning and can happen up to five times a day.Marnie, from Stoke-on-Trent, said: “I never know when it’s going to happen and I don’t like scaring people.
“When the bleeding comes it burns if I dab it with a tissue. I have to let it happen until it stops, which normally takes about half an hour.”
Marnie started coughing up blood following a chesty cough in February 2013.
She explained: “For the following two years I was back and forth to Staffordshire hospital for blood tests but they all came back clear.”
Marnie admitted: “I was so scared. I used to go out with my friends every day but I became too scared to leave the house.
“I had to leave Facebook because people started rumours I had Ebola. I could hide my bleeding eyes behind sunglasses in the summer but I can’t do that now so I stay at home.”