By Ben Barry

A teen's 'exam stress' was actually a sign she had a brain tumor .

Katie-Jo Bartlett, 19, said she would see "colors" on her exam paper, which would make her feel sick, and developed a "squint" walk and back pain.

Despite visits to her GP her symptoms were dismissed as "exam stress" by doctors until she collapsed in the toilet and was blue-lighted to Northumbria Specialist Emergency Care Hospital, in Cramlington, Northumberland.

Doctors diagnosed Katie-Jo with severe hydrocephalus - an abnormal build-up of fluid in the brain - and she was rushed to Royal Victoria Infirmary, Newcastle, to drain it.

A subsequent MRI and CT scan showed that Katie-Jo had a brain tumor which was causing the leak.

Since then, Katie-Jo has had multiple surgeries to secure a shunt to relieve

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