Bipolarism? Panic disorder? Moodiness of a teenager?

Ok. Often times I get nervous about things that are going to happen or I fear wont happen and start to shake. I get nervous, my heart pounds, I'm scared, I feel like I need to get somewhere else safe or get to someone who can calm me down. I can't sit still when this happens and my stomach turns. Afterwards....I'm fine...and usually get very giddy or excited. So, the first part of that leads to to think panic disorder...which I have thought since I was 10.....but now that people tell me that I bounce back so easily and so much, I think maybe bipolarism. However....friends say I'm just a moody teenager. And I just don't know. What do you think?

http://www.mayoclinic.com/health/bipolar...

Bipolar disorder
Introduction
From high to low. From euphoria to depression. From recklessness to listlessness. These are the extremes associated with bipolar disorder, which can be a serious and disabling mental illness. Bipolar disorder is also known as manic-depression or manic-depressive illness 鈥?manic behavior is one extreme of this disorder and depression is the other.
Bipolar disorder often begins in adolescence or early adulthood and may persist throughout life. The causes of bipolar disorder are elusive, and there's no cure.
The flares of bipolar disorder may last for weeks or months, causing great disturbances in the lives of those affected, their friends and their families. Left untreated, the condition usually worsens. But bipolar disorder can be managed with medications and other therapies.
http://www.nimh.nih.gov/healthinformatio...

http://www.bipolar.com/

Movies:
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If you are concerned about any of these things: panic disorder, bipolar, moody(which is one of the symptoms of depression), I strongly suggest that you speak with someone like therapist. These things don't, usually get better, they get worse. Perhaps you can put some things in place that will help you should something like this happen again. Things like deep breathing can help calm you, yoga and meditation help also.

If you are really concerned, don't let it go on for too long.

sounds like a panic disorder

idk if it's anxiety or a panic disorder, but i'm bipolar and that is not manic-depressive syndrome..i'm not a professional but that's not what it is, it's not just like mood swings. see a psychiatrist, go to him/her with real, detailed examples. they can help.