A woman has been diagnosed with a rare condition that causes her to laugh uncontrollably, which has led to some uncomfortable incidents with people confused by her outbursts.
Becca Banks started to experience what her family described as "strange episodes" around three and half years ago. Doctors initially diagnosed her with anxiety and depression and the 35-year-old was put on medication for 18 months.
However, she began to question her initial diagnosis and went to seek an alternative opinion privately. Sister-in-law Jean Stone, 40, said Ms Banks suffered epilepsy as a child and was diagnosed at around seven years old, but "grew out" of this around the age of 16.