How are you reaching your estimate for calories burned? That is a LOT of calories, and yes, you'll need a lot of calories to support your body. Burning 2815 in a week takes quite a bit of work, even at your weight.
If you are gaining weight in spite of this, then there's likely something going on
1) You're overestimating calories burned
2) You're underestimating calories eaten
3) You have a medical condition affecting your metabolism
So my question for you is this: How have you tracked your calories in the past when you gained weight? Are you weighing and measuring, or eyeballing it?
How are you determining your calorie burn?
At this point, if what you have done before isn't working, it's time to try something different. If you've been doing a certain exercise program for two years without change, then I assure you, you aren't burning as many calories as you think... your body adapts to exercise over time, and as you age, your metabolism DOES drop. You're not going to burn as much as someone your equal weight who is 20 years younger, or hasn't done the program as you have.
Writer, mother, wife, and breadwinner. I love to run, but running doesn't love me, so I'm switching to my low-impact bike.
I'm not pregnant, just fat: My blog. fatnotpregnant.blogspot.com/
| current weight: 186.4