Tempest in a teapot
Tempest in a teapot (American English), or storm in a teacup (British English), is an idiom meaning a small event that has been exaggerated out of proportion. There are also lesser known or earlier variants, such as tempest in a teacup, storm in a cream bowl, tempest in a glass of water, storm in a wash-hand basin, and storm in a glass of water.