Have you only just started with Tresiba? Its a longer lasting so you do have to give it time to settle in, I was told that any changes to dosage may take up to 3 days to show.
Could also be your honeymoon period coming to an end (or it just throwing a spanner in the works) meaning you need more insulin (cos I know it hasn't been too long since you were diagnosed), but that is just speculation
But yeah not everyone agrees with all the different types of insulin.