Off the deep end.

Certifiable.

Unstable.

Lost your mind.

Ludicrous.

Mad.

Crazy.

Out of your mind.

Gone.

Mentally absent.

Insane.

Cuckoo.

Crazy!

Mad as a March hare.

Wacky.

Nuts.

Mental.

Unhinged.

CRAZY!

I am all of these and more. But when they try and fix me, all I do is laugh. And laugh… And laugh.

Heehe.

Haha.

Hoho.

Muwahaha.

Giggle.

CRAZY!