Michele, it doesn't necessarily have to be bipolar. Your son could just be having a bad reaction to Celexa. Any SSRI can cause disinhibition, aggression, suicidal/homicidal ideation and emotional lability, even if the child doesn't have bipolar disorder (our psychiatrists have hammered this point home for years -- the only reason my son has a BiPolar (BP) diagnosis is because he has had mania without being on an SSRI). An SSRI can even help anxiety but also cause unwanted side effects.
My rule of thumb is this: If a medication is making things worse, discontinue it. Let things settle down to get a read on baseline behavior. Then decide if another medication trial is warranted.
Good luck.
