worry wart

idiomatic

(idiomatic) One who worries excessively or unnecessarily.

Japanese Meaning

過度に、または不必要に心配する人。 / 心配性な人。

My sister is such a worry wart that she checks the locks three times every night.

私の姉はとても心配性で、毎晩鍵を三回も確認します。

Sense（1）

(idiomatic) One who worries excessively or unnecessarily.

worry warts

（ plural ）