Are there different kinds of anxiety?

Yes, there are several kinds of anxiety disorder, some are listed below;

Phobias
A phobia is a fear that is out of proportion to any real danger. If a phobia interferes with your ability to lead a normal life, then it may be considered an anxiety disorder. Common phobias include fears of heights, spiders, mice, blood, injections or enclosed spaces.

Panic disorder
If you have panic disorder, you can suddenly develop intense periods of fear known as panic attacks. You may find that something triggers your panic attacks, or they may develop for no apparent reason. Panic attacks usually last five to 10 minutes, but they can last longer.

Obsessive-compulsive disorder
If you have obsessive-compulsive disorder (OCD), you may have repeated obsessions and/or compulsions that make you feel anxious. OCD symptoms vary from mild to severe. They include obsessions (recurrent ideas that make you feel distressed or anxious) and compulsions (actions or rituals which you feel necessary to cancel out the obsessions).

Post-traumatic stress disorder
You can develop post-traumatic stress disorder (PTSD) if you have had, or have witnessed, a traumatic event. PTSD symptoms include anxiety, which may come and go, and recurring thoughts, memories, images, dreams or distressing 'flashbacks' of the trauma. PTSD may develop years after the traumatic event has occurred.

Generalised anxiety disorder
Anxiety can be a long-term disorder where you feel worried most of the time about things that might go wrong. This is called generalised anxiety disorder (GAD). If you have GAD, you may also have panic attacks and some phobias.

(Source BUPA)