Let me preface this by stating that I am NOT looking for a diagnosis. I've been diagnosed with depression and anxiety, and am interested in speaking to my psychiatrist about bipolar disorder. 

For those of you with diagnosed bipolar disorder, how often do you tend to go from manic to depressed? From what I've read, it seems that phases tend to be weeks long. Is this the case for most of you? 

I often experience pretty severe mood changes but it's quick. I'll go from feeling angry and vengeful to happy and carefree in the span of 15-20 minutes, just back and forth. This is especially prevalent when I'm feeling a very strong way about something. 

I absolutely understand that changes in mood are not the only symptom. I'm just curious if others experience these quick changes, and if it COULD potentially be a sign of something. But again, I'll bring it up to my doctor regardless I just don't want to sound ignorant if I question her about a possible diagnosis.