Balance isn't balance if you have to hold your breath (or anything else) in order to stay put. Ask any yoga student--it's better to find that second, that millisecond of poise in which, by breathing, you feel as though you're floating, than to grind yourself into submission via tension.
When we hold our breath to remain in equilibrium, we aren't in flow. Instead, we're the equivalent of shoving a stick into unyielding ground, just hoping it will hold our tent fast through the storm. Better to hike on, to find ground that yields to the stake, and that will hold us through the night, rather than the other way around.
You'll find balance if you breathe, if you're aware, and if you're trusting of your two feet (or one foot, two hands, whatever your pivot point). Patience itself is a study in the arc (and art) of balance.