"Storm in a teacup," "tempest in a teapot," and other variations is an idiom in many languages, including English: https://en.wikipedia.org/wiki/Tempest_in_a_teapot

haha, it is, I thought it's also a phrase in English... Hebrew is my mother tongue.

From where I from we use to say "una tormenta en un vaso de agua" (which could be translated to "a storm in a glass of water")