This should be an indication that tracking as a personal health methodology is inherently flawed. Your body is your most accurate measurement system, both in terms of precision and accuracy but also in its multidimensional, intersectional measurement apparatus that completely demolishes the poor substitutes found in personal nutrition, which are continuously shown to be either flawed in theory or in practice.

Tracking takes more work and is less accurate. Bad trade.

The only use I see in tracking is to perhaps help one inform one's intuition. But that's as far as I'll go.