Bipolar Disorder Support Group
Bipolar disorder is not just a single disorder, but a category of mood disorders marked by periods of abnormally high energy and euphoria, often accompanied by bouts of clinical depression. This is the place to talk about your experience with bipolar disorder, learn from others' experiences, and find support.
If you've tried the nice approach and they ignored you taking them aside to talk one on one about their attitude then you will have to get tough. You could try to ignore but the chances are if its a group of colleagues acting badly it won't go away on its own without your saying something so they realize to back off and grow up.