When Thea Wilson woke up covered in mysterious bruises after a night out anyone would think she'd got plastered and fallen over multiple times.
But the 37-year-old had stayed sober the entire night and, mystified by the purple marks covering her body, decided to seek medical help.
Doctors first believed her condition to be a platelet disorder, but she was eventually diagnosed with a rare form of leukaemia.
"I had no idea where these bruises had come from," she said, according to The Metro. "They were big and purple and all up my arms and legs. I’d been getting little ones for a few weeks but nothing like that.
"At first the doctors thought it was a platelet disorder. When they told me I had leukaemia my world fell apart."
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Wilson was diagnosed with Acute Promyelocytic Leukaemia (APL).
According to Leukaemia and Lymphoma Research, there are no specific symptoms of APL and it is common for the condition to be confused with other illnesses.
APL is caused by a lack of healthy red and white cells and platelets in the blood, it often develops quickly, with symptoms appearing over a matter of days or weeks.
Common symptoms include unusual bleeding and bruising, paleness, tiredness, breathlessness and infections
Wilson has been in remission for six months, according to The Metro.