"We have been going to work and trying to act normal, but all the time I have had a ticket worth $6.5 million in my handbag," the woman said.

"It has been very difficult to get any sleep in the past few days."

They have not splurged on anything and said they would keep working.

"We still caught the bus to the lotteries office from the airport. Winning millions was not enough to make us splash out on a taxi," the man said.