@lis107 There is no reason to be concerned with those calories. Those are you BMR calories that you already burned for the day. There is a weird quirk with the Fitbit programming. Your steps, flights of stairs, etc., start with the time your Fitbit is added to your account. But is shows those BMR calories. It has done this as long as I have been a Fitbit user.
Those BMR calories plus your activity calories are your total calorie burn for the day.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.