25% of us walk around with a hole in our heart. When we're little, the foramen ovale allows blood flow from right to left without having to go through the lungs, which don't work right. But in up to 1 in 4 of us, it doesn't close, and we're never the wiser.
20% of us walk around with unequal pupils, anisocoria, which is a finding on neuro exam.
Just something to think about. Not all that looks broken, is.