A simple insect bite completely changed the life of a young woman from Liverpool - and the problems she's had getting her illness diagnosed and treated has caused her even more distress.
Worryingly, Lyme disease, which is carried by ticks, is on the increase in Europe.
It left Emma Horlock exhausted and inconstant pain - and she felt let down by the health service.
Now she wants lessons to be learnt from her experience.
Mel Barham reports.