bananas

crackers crazy cuckoo lunatic maniac nuts psycho sick

bonkers brainsick crazy as a loon daft demented deranged distraught disturbed dotty kooky loco mad mad as a hatter maniacal moonstruck not all there nutty as a fruitcake off one's rocker out of one's mind out to lunch sick in the head stark raving mad touched unbalanced unhinged unsound wacky

healthy sane sensible