I have known that the BMI is bullspit from the moment I was measured by it. According to the BMI my ideal weight is 175. But I am comfortable, and look and feel healthy when I weigh 200-205. I could not achieve 175 without losing all my fat and allowing muscle mass to atrophy. No possible way. Several years ago I worked out and watched my diet like a madman for several months and basically burned away all my fat. I got down to 190. My wife thinks I am unattractively skinny at 190, and my body did NOT want to stay at that weight. It wasn't a natural balance for me.
These days (turned 49 today), unless I watch what I eat and work out regularly, I have a tendency to gain fat. I've flirted with letting diet and exercise lapse for extended periods a couple different times since I turned 40, and it hardly takes anything to pack on some pounds. But when I'm watching my diet and working out, and my metabolism is humming on all cylinders (for my age, of course), 200-205 is right where I land, and that's where I look and feel my best. BMI be damned.