Idioms*

A bee's in my bonnet

A monkey's on my back

A bat's in my belfry

And I can smell a rat

A flea's in my ear

A frog's in my throat

I've ants in my pants

Now someone's got my goat

There are butterflies in my stomach

I feel a total wreck

Cos these idioms are albatrosses

Around my neck

*an idiom is an expression that means something different than the literal meaning of the words would suggest