Like headaches and blurred vision without having a complete attack. My daughter has these problems but sometimes not all the symptoms. She is 9.
panic attacks are sudden feelings of terror that strike without warning. These episodes can occur at any time, even during sleep. A person experiencing a panic attack may believe that he or she is having a heart attack or that death is imminent. The fear and terror that a person experiences during a panic attack are not in proportion to the true situation and may be unrelated to what is happening around them. Most people with panic attacks experience several of the following symptoms:
•"Racing" heart
•Feeling weak, faint, or dizzy
•Tingling or numbness in the hands and fingers
•Sense of terror, of impending doom or death
•Feeling sweaty or having chills
•Chest pains
•Breathing difficulties
•Feeling a loss of control
Here are some other panic attack related sites that I thought would be of interest to you. Thanks for checking out my blog!
Healing panic attacks - You CAN Heal Your Panic And Anxiety
Panic attack problems help? - Yahoo! Answers
Major league anxiety: Players more open to seek help - USATODAY ...
scarypranks01 - Twitter
Postpartum Panic Disorder

Panic attacks are sudden feelings of terror that strike without warning. These episodes can occur at any time, even during sleep. A person experiencing a panic attack may believe that he or she is having a heart attack or that death is imminent. The fear and terror that a person experiences during a panic attack are not in proportion to the true situation and may be unrelated to what is happening around them. Most people with panic attacks experience several of the following symptoms:
•"Racing" heart
•Feeling weak, faint, or dizzy
•Tingling or numbness in the hands and fingers
•Sense of terror, of impending doom or death
•Feeling sweaty or having chills
•Chest pains
•Breathing difficulties
•Feeling a loss of control
References :
http://www.stoppingpanicattack.com