this is often a very addictive habit of nervous people, unkind people say its a type of masturbation.....
it does you no good in the long term so do relax your muscles and stay still
deep slow relaxed breathing will calm you
a version of leg shaking is to clamp legs together pressing on a nerve, causing violent shaking, extremely addictive aqnd off putting

Anxiety attack symptoms are NOT indications of a serious medical condition. They are simply dramatic responses to being afraid. Being afraid causes the body to stimulate stress hormones. Since stress hormones are designed to prepare the body for action, the changes stress hormones bring about can cause the body to exhibit symptoms of this biochemical change. Anxiety attack symptoms are simply sensory sensations of this biological change. Again, they arent harmful, but they are letting you know that your bodys stress hormone levels are elevated.

Common anxiety attack symptoms include:

A feeling of impending doom, that something horrible is about to happen, that you are in grave danger

A strong feeling of fear, foreboding

An urge to escape, to get out, to run away from danger

Blanching, turning white, looking pale

Blushing, skin blotches, turning red

Burning skin

Choking sensation, tightening throat, it feels like your throat is closing

Confusion

Depersonalization (feeling detached from reality, separate from one-self, separate from normal emotions)

Derealization (feeling unreal, in a dream-like state)

Dizziness, lightheadedness, unsteadiness

Emotional distress

Emotional upset

Fear of going crazy

Fear of losing control, freaking out

Fearful thoughts that seem incessant
Feels like there is a tight band around your head

Hot or cold chills

Inability to calm yourself down

Knot in the stomach, tight stomach

Nausea

Numbness, tingling sensations in any part of the body

Panicky feeling

Pins and needles feeling

Plugged ear(s), stuffed ear(s)

Pounding heart

Racing heart

Shooting pains in the chest, neck, shoulder, head, or face

Shortness of breath, difficulty breathing

Sweating

Tightness in the chest

Trembling, shaking (visibly shaking or just trembling on the inside)

Upset stomach

Urgent desire to go to the bathroom (urinate, defecate)

Vomiting

There is a long list of anxiety symptoms. But because each body is somewhat chemically unique, anxiety affects each person differently. Consequently, anxiety symptoms vary from person to person in type or kind, number, intensity, and frequency. If your symptoms dont exactly match this list, that doesnt mean you dont have anxiety. It simply means that you body is responding to anxiety slightly differently.

http://www.dailymail.co.uk/health/article-2009595/Fidgeting-getting-make-tea-good-health.html

I tend to shake my leg sometimes too. Even when i'm not nervous. People have told me to stop, sometimes i can others I can't. It's a common thing for people with anxiety problems.

This is so normal for people like us who do have anxiety disorders. I do shake as well when I am having a panic attack. My feet do the same thing! However, I wish that this kept me thin!!! I think this is normal sweetie! You sound you have a good mother.

Me too! I've always been that way really. I'm always shaking my leg up and down when sitting and left and right when laying down. Everyone hates it haha :) It feels weird to not move at all though.

Hi, yeah i tend to shake my legs and feet too :) My partner automatically asks me if im having a panic attack if he sees me doing it but sometimes it just happens and im not even really aware that im doing it ......hope this helps :) xx

I definitely move a lot, whether it is rocking back and forth (a habit from my childhood) or jiggling my leg while I am sitting. I also constantly move one of my feet while I am trying to fall asleep ^_^