In the early stages of ketosis, the symptoms may be a bit unpleasant. However, as your body adapts to the presence of ketones in the bloodstream, symptoms lessen and change. Early ketosis symptoms usually last for several days or up to a week in some people.
Definition of kilter. : proper or usual state or condition : order out of kilter.
to act hesitantly; show uncertainty; waver; flinch: to falter under enemy fire; to lose strength, certainty, etc.; weaken: the economy faltered; Origin of falter. Middle English faltren, probably from ON, as in faltra(sk), be uncertain