A WA family anxiously waiting for specialist advice for their daughter who is enduring ongoing seizures and memory loss has been delivered a cruel new blow after their home was destroyed by a tornado.

More than 100 properties were damaged when the twister ripped through Bunbury, 170km south of Perth, on Friday afternoon.

Tia Bondarczuk’s rental is among those set to be deemed uninhabitable after the freak weather event which collapsed her roof and caused millions of dollars worth of damage in regional city.

It was a devastating new chapter for the family, with Bondarczuk’s four-year-old daughter Gracie enduring a nightmare period over the last three months.

The little girl’s life has been turned upside down by debilitating grand mal seizures which cause her to lose consciousness before violent convulsions take over.

Her parents say Gracie is the “sweetest, nicest person in the world” but is a shell of her true self and “going backwards”.

Bondarczuk said the seizures and memory loss had been heartbreaking to watch, particularly when her girl regains consciousness, terrified and unable to recognise her parents.

“Her memory loss — it’s like living with someone with dementia at four years old,” Bondarczuk told 7NEWS.com.au, recounting one example where her daughter did not remember who she was for 45 minutes.

Gracie has also had to be reintroduced to her two sisters on several occasions.

Gracie Bondarczuk’s family are desperate for answers to her health problems.
Gracie Bondarczuk’s family are desperate for answers to her health problems. Credit: Supplied/Tia Bondarczuk
Gracie’s parents say she regains consciousness, terrified and unable to remember who they are.
Gracie’s parents say she regains consciousness, terrified and unable to remember who they are. Credit: Supplied/Tia Bondarczuk

With her condition worsening, the family is waiting for a call from specialists at Perth Children’s Hospital, hopeful they can deliver a solution to her health woes.

“It so horrible. I can’t even explain how we are meant to wait when you feel like you don’t have time because it’s getting progressively worse,” Bondarczuk said.

The family is also exploring sensory testing, which is costly and will have to be covered out of pocket.

A fundraising campaign has been launched to cover medical bills, travel expenses and other necessities that Medicare and private health insurance do not fully assist with.

“This is something we have kept to ourselves,” Bondarczuk said.

“We have been trying to work through it as a family, but due to the circumstances, it has become extremely overwhelming and difficult.”

Gracie is waiting for a call from Perth Children’s Hospital specialists.
Gracie is waiting for a call from Perth Children’s Hospital specialists. Credit: Supplied/Tia Bondarczuk

Sixteen Bunbury properties were severely damaged by the tornado, and nine have been deemed a total loss.

The town’s prison, a sporting centre, other community buildings and infrastructure failed to escape unscathed, but serious injuries were avoided by all in the twister’s path.

Residents living in uninhabitable or severely damaged homes are eligible for $4000 in emergency relief payments from the state government and others impacted by the tornado can access up to $2000 to pay for food, clothing and accommodation.