There are three types of anxiety
1) Anxiety/Panic Disorder
This is the form of the disorder that brings on sudden attacks that paralyze you with fear for no apparent reason. Of course there are absolutely underlying factors that cause these attacks, however, the sufferer rarely knows what those are.
The most common symptoms are:
- Difficulty breathing.
- Pounding heart or chest pain.
- Intense feeling of terror.
- Sensation of choking or smothering.
- Dizziness or feeling faint.
- Trembling or shaking.
- Nausea or stomachache.
- Tingling or numbness in the fingers and toes.
- Chills or hot flashes.
- A fear that you are losing control or are about to die.
People that suffer from this disorder may honestly feel as if they are dying, having a heart attack, or losing their minds. These attacks can occur at any time, and even while the sufferer is asleep.
Anxiety/Panic Disorder is often connected with other serious disorders such as depression. Due to the fact that the attacks associated with this disorder are such terrifying events, the sufferer may make several trips to the local emergency room not really knowing the true cause as it may be difficult to get a correct diagnosis at first.
This disorder can be very debilitating to the sufferer and can extremely hinder their daily activities. However, this form of disorder is the most treatable of all the Anxiety Disorders, and so an individual experiencing symptoms of this disorder should seek help and treatment through their health care professional.
2) Social Anxiety Disorder
This type of disorder more commonly strikes when a sufferer is placed within a social setting. It is also referred as Social Phobia and can be a very traumatic and debilitating disorder making it near impossible for one afflicted with it to be comfortable at any social gathering. This includes everyday functions such as attending class, going out to dinner , or even going to work.
The person suffering from this disorder has strong self-conscious issues and may often times feel as if they are not welcome, or really a part of the social setting. They feel as if they are constantly being judged or watched by others for no apparent reason other than those things they themselves feel self-conscious about.
Often times, the sufferer will experience any of the following symptoms when placed in social gatherings:
- Intense fear of being in situations in which you don’t know people
- Fear of situations in which you may be judged
- Worrying about embarrassing or humiliating yourself
- Fear that others will notice that you look anxious
- Anxiety that disrupts your daily routine, work, school or other activities
- Avoiding doing things or speaking to people out of fear of embarrassment
- Avoiding situations where you might be the center of attention
- Profuse sweating
- Trembling or shaking
- Nausea, stomach upset
- Difficulty talking, shaky voice
- Muscle tension
- Cold, clammy hands
- Difficulty making eye contact 
A person suffering from Social Anxiety disorder can become so upset by an upcoming social event that it will plague them for weeks in advance working them into an anxious frenzy by the time the event finally comes around. In an attempt to feel better, a person will often times turn to alcohol or drugs to cope with it. This disorder usually happens sometime during early childhood or adolescence and continues on throughout adulthood. Treatment for this disorder can be accomplished through careful and consistent counseling and medication.
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3) General Anxiety Disorder
This disorder is a sense of anxiety or worry experienced on a daily basis. It is a chronic disorder that is continuous throughout the sufferers day. They experience difficulty concentrating or constant, excessive worry about every day concerns with an inability to control those overwhelming feelings of worry.
Symptoms can also include:
- Excessive, ongoing worry and tension
- An unrealistic view of problems
- Restlessness or a feeling of being “edgy”
- Muscle tension
- Difficulty concentrating
- The need to go to the bathroom frequently
- Trouble falling or staying asleep
- Being easily startled 
While not as extreme a condition such as Anxiety/Panic Disorder, it is still a serious disorder that requires professional treatment from a qualified health care provider
Course Index: Part I: Who Suffers From Anxiety – Part II: What Are The Types Of Anxiety? – Part III: What Can You Do To Battle Back?
 National Institute of Mental Health. Anxiety Disorders. Retrieved September, 2010, from https://www.nimh.nih.gov/health/publications/anxiety-disorders/introduction.shtml.
 Mayoclinic.com. Social anxiety disorder (social phobia) . Retrieved September, 2010, from https://www.mayoclinic.com/health/social-anxiety-disorder/DS00595/DSECTION=symptoms.
 Medicine.net. Generalized Anxiety Disorder (GAD). Retrieved September, 2010, from https://www.medicinenet.com/anxiety/article.htm.