T-surfer has some very good resources there.

You didn't mention how old you are, but something to consider is that bipolar disorder can present itself very differently in children and younger adolescents. I am having my own daughter evaluated because of this. Early-onset bipolar looks different from bipolar that comes on in your late teens/early 20's. There is much more rapidly-changing mood instability, looking more like ultraradian cycling (very fast shifting between moods in the course of the day). Another site that you and your mom could check out is http://www.bpkids.org/ - The Child and Adolescent Bipolar Foundation. Keep in mind that not everyone has the same symptoms. There may be things there that may not apply to you. Not trying to diagnose you, just some food for thought.

I hope you feel better soon.