Calories counted are wrong

[Susan_1]

Yesterday as I was monitoring my calories, Fitbit told me that by around 9:30pm I had burned 2400 calories, this made sense.  I had gone on two walks and had stepped over 10,000 steps.  It was also consistent with the previous day where I had burned 2,082 calories but only had 7,440 steps.  BUT, in the morning today when I went back and looked, Fitbit had recalculated my calories from yesterday down to 1,990!  I lost over 400 calories!  It just doesn't make sense.  I've checked and my height, weight, etc. are all correct.  I wear my Fitbit on my wrist in the correct position. Given that the app revised it's calculations - it seems like it is an app issue. 

[Susan_1]

Additional info: While looking more closely at the info on my app for yesterday, I realized that at some point the app decided that I did nothing at all for 8 hours in the middle of the day.  It remembered the total count of my steps but shows that I had 0 steps for 8 hours.  So the calorie count for those hours is all the same and just accounts for the calories I need to stay alive.  But, I was definitely moving during those 8 hours (8am-4pm).  The app knows that I had 105 zone minutes, but the hourly accounting only totals up to 81 minutes (the same 8 hours are missing data).  This is a bug of some sort.

[Tigergutt]

I lnowe. Om am hurt an therefor out of practise