Fit bit help

Anyone use Fitbit? I have posted this on their support forum but any advise would be welcomed.



Hello. This morning I went for a walk for 70 minutes and covered 3.7 miles (I tracked this with GPS) Fitbit reported this as 4.6 miles....

It then updated My Fitness Pal profile with over 1000 extra calories! I do make sure I put the start and end time in the activity.

I changed this to 500 on MFP. So I log back in later, and Fitbit has credited me with 600 calories for sitting on my backside at a desk.

Am I doing something wrong? as people are telling me I should be eating my exercise calories, but if I did I would be adding another 1500 a day!

Help needed