And freedieting.com says you need 1859. Unfortunately, all those calculators and gadgets are just estimations. Sure the bodymedia is probably pretty acurate about your burn, but that doesn't necessarily mean that you can eat all those cals back.
We're all experiments of one, as we've all heard here, and you're just going to have to pick a calorie range and stick with it for at least 8 weeks IMO, to see how it reacts with your level of activity, TOM, and other natural life fluctuations. I know that's hard, but finding that sweet spot can take a long time. If you don't like what the scale is doing then you can increase or decrease depending on your desired results.
If it matters to you, I was maintaining at 1600-1800 with weekends "off" for a while. Then I decided to up it to 1800-2000 with weekends still "off" but a little more controlled. I'm still deciding if I'm liking the second range and am considering decreasing slightly because I'm not quite sure I'm liking the scale's behaviour. I'm 31, 5'6" on a good day and hovering at 141-143, and I think I liked it hovering at 138-140 better, but I'm also in the middle of a strength training program so I'm not sure what the best course of action is for me right now. So like I said, experiment of one
Good luck!