Wow. You must be very active. I'm a pretty normal 5'10 175 or so and I need to eat 2k or under to have a chance to lose weight. I shoot for 1,800-2,000 when I'm trying to lose a few. When I don't give a fuck I'm probably eating more like 2,400-2,800. If I ate 3,700 I'd be over 200 easy, I would assume.
Hard to honestly count calories...... most people eat more than they think they do. It's hard to track and nobody I ever met understands an actual portion size. Everybody eating more calories than they think they are. The metabolic testing is good stuff. Lets you know where the breakeven is. But ya..... Im high. Mostly ADD related