Thyrotoxic Periodic Paralysis

When episodes of muscle weakness recur in someone with an overactive thyroid, it may be thyrotoxic periodic paralysis, a condition in which excess thyroid hormone causes mineral imbalances that affect muscle strength.

What characterizes it: The attacks of weakness appear transiently, usually involve the arms and legs, and are associated with elevated thyroid levels.

Situations that can trigger it: They are frequently related to meals high in carbohydrates, prior physical exertion, or periods of rest following activity.

Who to consult? The workup is handled by the endocrinologist, who evaluates thyroid function and the origin of the episodes. When weakness comes and goes along with symptoms of an overactive thyroid, it is advisable to seek that professional evaluation.