The teen has had to adopt a strict diet and completely change her life to help treat the condition since the seizures began four years ago.
Her mum Melissa Duncan wants the Fraser Coast to wear purple this month to end a lack of knowledge about epilepsy and how it affects people like Shania.
Purple Day, held on March 26, is held to raise awareness of epilepsy and help fundraise for research.
“It’s an illness that is really debilitating for the sufferer,” she said.
“They don’t need negativity, they need positivity.”
Shania cannot be left alone and has to wear a life jacket while swimming due to the risk of a seizure happening without warning.
The family has struggled to secure any funding because epilepsy was not classed as a disability.
She praised Xavier Catholic College for securing funding for an aid to allow Shania to attend school part-time.
Epilepsy Queensland chief executive officer Helen Whitehead said one in 50 people would be diagnosed with epilepsy.
She said fear and discrimination against the condition were often the biggest problem for some people.
Here in Orlando, Florida you can support Purple Day and #EpilepsyAwareness by wearing purple and supporting local businesses that have become “Purple Partners” For more information about this, please visit the Purple Partners webpage.