What cause Anxiety/Panic Disorder

[nasriwadiah]

I guess i know im having panic/anxiety disorder,
well after countless times to ER and clinics. I have chest pain( which is stabbing sometime pressure) arm pain, neck pain, racing heart beat, sweating, tremors, mouth dryness, tingling sensation on my fingers on the left hand, on and off headache, nausea, shortness of breath, weird feeling of unsafe, scared.

The doctors says my heart are okay, after countless ECG and bloodwork. and i also have my thyroid checked, which is okay to.

So my question is, what causes anxiety disorder?
i do not fear getting in a crowded place, but anxiety attack happens here.
i do not know what triggers my anxiety attack.

please enlighten me.

[nasriwadiah]

Thanks alot, you two.

Does anxiety disorder always develop a new pain? cause somehow i develop a new pain, i have back pack nowadays.

[MMahon]

I believe that for many anxiety disorder is due to a defect(s) in your nervous system.
Either due to chemical imbalances and/or nerve inflammation the nervous system no longer functions 'normally'.  I kinda describe it like an upset stomach.  It gets inflammed, red, upset and unable to tolerate what it used to and BAMM before you know it you're puking your brains out.
Your nervous system is made up of organs not unlike your stomach but so much more complex  and When it goes out of balance the effect can be seen just about anywhere.
Like having an upset stomach causes you to now have to watch what you eat and have your life limited to the extent that your stomach is upset, having anxiety is exactly the same.  Except we have to watch the things that 'irritate' our nervous systems and have our normal lives impeded until we get better or find a medication that relieves the symptoms the illness hits us with.
Unlike an upset stomach, Anxiety can be MUCH more severe and needs treatment as early as possible and may not go away on it's own.
Hope this makes some sense!  

[mammo]

Often anxiety is caused from an unresolved traumatic event in our past, but sometimes we never learn why we have anxiety.  Often the traumatic event has been forgotten about and this makes the anxiety even more frustrating for us.  If as a child something happened to you, which you just tucked neatly away and forgot about, it will come back to be dealt with in the form of anxiety and/or depression.  This is where therapy can play a big role in helping you to learn if this is what is causing your anxiety, then getting it out and dealing with it.  If there is no such event causing your's, then therapy can teach you how to cope better and relaxation techniques to ease your anxiety.  Not everyone has triggers, it just hits us out of the blue.  But with therapy and/or medication all of this can be controlled to improve your quality of life.  Your symptoms I'm sure are keeping your anxiety level high, which in turn is feeding your anxiety, keeping it going strong.  This creates a vicious cycle that we need to break.  Learning to "accept" that you are fine is the first big step, then trying to not let your symptoms scare you is next.  Lose the fears and worry and you'll lose your anxiety.  You've had enough tests to put your mind at ease, now you must accept that you're fine.  I hope this helps and I wish you all the best!