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.

Before anyone gets offended by my comments re anger... just know that I am referring to myself also.
Hugs from Suze x
The bottom line is, a doc has to make this judgment, not anyone here.
I guess the key differences I see here are:
1) Reactive behavior and
2) Self -injury.
But to be honest, in my opinion, I can't see how the heck docs dx the difference between ultra-rapid-cyclers and bpd.
Also should be noted that the abuse in childhood can be present in any type of disorder.