I just wanna know

[FelixSable]

I just want to know if I have Bipolar Disorder that's all..or, maybe something else,
I'm 16, I'm constantly depressed to the point of crying at times, these depressive moments are sometimes interrupted by brief moments of happiness, and extreme energy, I can't keep it in sometimes and I tend to act goofy, which is out of character for me.
I have serious hardships concentrating at times, and I get a bit distracted easily.
I have a girlfriend, we're extremely devoted to one another and plan on getting engaged at the end of 2011, but, I'd feel so dejected and worthless sometimes that I think she could hate me any minute.
I felt a tremendous amount of guilt at one time in my life, my nerves were so tense ,so much so I started vomitting.
Also in the brief happy moments, my judgements are faulty, I fel like everything's great, and I'm so in control of everything around me, which has driven me to say some very risky and stupid things.
I guess I just want to know if I'm sick or not, may someone please help?

[Athena_M]

All the symptoms sound like bipolar.  
Why are you crying?
What are you feeling guilt about?  
Is there something in your childhood that makes you feel so sad?
You could also have a B12 deficiency.  B12 deficiency is linked to feeling depressed.  You would have to go to a doctor to find out if you are deficient.  Just don't take a high dose it could make you manic.  
Maybe you need to talk to a therapist to help you with all of these feelings.  Seeing a psychiatrist too could help for a diagnosis and medication.  

[FelixSable]

I guess you mean I have all the symptoms...my mood swings occur a few times a day,
well, thanks for the help .

[GettingOlder]

Bipolar disorder — sometimes called manic-depressive disorder — causes mood swings that range from of the lows of depression to the highs of mania. When you become depressed, you may feel sad or hopeless and lose interest or pleasure in most activities. When your mood shifts in the other direction, you may feel euphoric and full of energy. Mood shifts may only occur only a few times a year, or as often as several times a day. In some cases, bipolar disorder causes symptoms of depression and mania at the same time.

Although bipolar disorder is a disruptive, long-term condition, you can keep your moods in check by following a treatment plan. In most cases, bipolar disorder can be controlled with medications and psychological counseling (psychotherapy).

[paranoid_cataclysm]

Sounds like you could possibly have bipolar disorder though you'd do best to speak with a doctor about the matter because we can't tell you for certain if you have bipolar disorder or not.