Oooh bear well done!!! I can't wait to get back into the 11's! I managed to get from 14.4 to 11.9 last year and then annoying found myself back up to about 12.12.5/12.13 after Christmas. However, just a couple of days at this and now I am in ketosis, I was 12.5.7 this morning - WHOOP!
Re exercising and fit bits....I am always really dubious about the calories burnt that fit bits give and they always seem so much higher than my garmin.
I have worked out that my TDEE is about 1750 cals - 5'7" and I set it to sedentary as most days I work from home and sit at a desk all day. I generally do a 3-4 mile dog walk that gives me another 300-360 calories on top and is about 8,000 steps - by now I am about 2,050 - 2,100 calories burnt in a day.
I then do other exercise like a Hiit type class on a Monday and Tuesday which is about 350-400 cals and then do something exercisy for another 3 days a week generally burning about 400 cals a session.
So with the dog walks and exercise I guess I average 3,500-4,500 cals a week burnt on top of my TDEE which gives me an average of 2,250 per day. (some weeks if I can find the time to dog walk 4 miles and do 1 hours cardio, I might get nearer to 6,000 cals burnt on top of my TDEE but it is rare) The days I do the HiiT class plus a dog walk I can get about 16,000 steps and regularly do 10,000 with the dog walk and general steps.
My weight loss over time has shown that I am not burning more than this because if 1lb = 3,500 calories then I have historically lost about 1.5 lb a week with that much exercise and a 300 drop in daily calories from my TDEE.
My point is that burning 3,000 true calories a day would mean a 2.5 lb weight loss a week for me even whilst being able to eat 1,750 cals!!!! I would have to do shed loads of walking and exercise to do an additional 1,250 cals on top of my TDEE.