Understanding Anxiety Disorders
Anxiety disorders involve more than temporary worry or fear which is strong enough to be an interference with one's day to day activities. They are a group related to conditions rather than a single disorder, and symptoms may vary from person to person.
It is a mental disorder that produces fear, worry and a constant feeling of being overwhelmed. It may occur to anyone, ranging from a 13-year-old kid or a 70-year-old senior citizen. It is characterized by excessive, persistent & unrealistic worry about everyday things. Major symptoms can vary from difficulty to control things and self-isolation to avoid things.
Some mental and physical symptoms of Anxiety disorders are:
- Excessive fear/ irritation/ worry. 
- Watching for signs of danger 
- Trouble concentrating 
- Insomnia 
- Feeling of mind going blank 
- Feeling tense and jumpy 
- Pounding heart /headaches /shaking and trembling 
- Shortness of breath and muscle twitches 
- Frequent panic attacks 
- Feeling overheated very often 
- Feeling constantly lightheaded or weak. 
Panic Attacks:
Panic attacks are episodes of intensifying panic or fear. An obvious trigger ranging – hallucinations – claustrophobic, giving a speech, getting stuck. Even side effects of chemical medications can be a reason.
The attack peak within 10 minutes to 30 minutes, one may experience extreme terror, hyperventilation, nausea, stomach pain, hot flashes and chills.
Treatment -
You may try to overcome your fears or face the pain that brings anxiety levels to bad, as it is possible to control the disorder in few ways :
- Connect with others, build positive communication and share your thoughts. 
- Manage stress by picking new hobbies or lowering your workload. 
- Practice relaxation by a good run, meditation, journaling. 
- Get enough sleep if your anxiety disorder is related to insomnia or fewer hours of sleep. 
You may even seek a doctor/therapist /counselling:
- The most common one is a psychotherapist who uses Cognitive behavioural therapy (CBT), whose effect has been great in matters for anxiety disorders. 
- Medications are another measure used, which include sedatives and antidepressants that ward off severe symptoms of disorders. 
- Resolve some queries if the disorder is hereditary or due to any medicines used for different illnesses which causes side effects. 
Lastly, build self-communication and techniques which will help you to lower your panics and improve your depression.
Seek professional help if your thoughts or actions are harmful.
Citations:
https://www.health.harvard.edu/blog/anxiety-what-it-is-what-to-do-2018060113955
https://newsinhealth.nih.gov/2016/03/understanding-anxiety-disorders