I don't know I feel guilty too !! I've only taken one day off since September . That was to drive my son to a specialist in another city . The only dcf who had a problem ended up leaving the same month !! My contract says I have personal days and they wanted to deduct that day (even though I charge monthly , not daily ) it was a mess !!!
I have cut my days back so I'm now working only 3 days a week so I feel guilty if I think of taking a day off !!