Communication Sucks Some Days

These are the days I can't explain to people with verbal or truly communicative kids. KiKi has been screaming - as in full bodied, blood curdling screaming - and hitting walls and himself, and stomping and jumping for 45 minutes. He wants something. I've tried asking him what and where (with no response), and after 45 minutes he finally tells me "green, blue, yellow, pink" then goes back to screaming. Again... another 5 minutes of screaming then the same answer, "green, blue, yellow, pink"... I am so frickin clueless as to what he's trying to describe. :(