Why do I get growing-pain-like aches as an adult?

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Aching legs in the evening that feel like childhood growing pains have adult explanations, since growth plates closed years ago. The closest match is muscle overuse - a big walking, standing, or workout day bills you that evening with deep, diffuse, both-leg aching that settles with rest, stretching, and warmth. The other fits: vitamin D and magnesium shortfalls, which produce exactly this vague deep ache and are worth testing if aches persist; restless legs syndrome, where the ache comes with an irresistible urge to move and hits at rest in the evening; dehydration and electrolyte dips after sweaty days; and fibromyalgia's diffuse aching, usually with tender points and unrefreshing sleep.

The home trial: two weeks of hydration, an evening stretch routine, magnesium-rich food - nuts, leafy greens, legumes - and noting whether aches follow activity. That pattern of trial answers most cases.

The flags: aches that are one-sided or localized to one spot, aches with visible swelling, redness, or warmth - one swollen warm calf is the clot emergency - aches with fever, aches that wake you from sleep night after night, or aches with progressive weakness. Bone pain that is deep, constant, and night-waking always deserves a provider visit, per standard bone-pain guidance. Everyday both-leg evening aches after big days: stretch, hydrate, and let them be.

Pymander is a free AI doctor, 24/7 by text. Describe where the aches sit and when they come, and it can help you read them.

Why do I get growing-pain-like aches as an adult?

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