My five year old son is diagnosed with ADHD. But the ADHD medications have no real effect on him and during our last appointment his doctor suggested that he may also have Bipolar. I would love to hear from others who have kids diagnosed with bipolar and how it looks. My son is extremely active and irritable. Sometimes he "gets stuck" on certain ideas and can't seem to let them go. Other times he cries and doesn't seem to know why. He also deals with a lot of separation anxiety.