Hi agoraphobia means unreasonable and excessive fear leading to avoidance of open space/ public place e.g markets. Your difficulties point to episodes of severe anxiety called panic attacks. Many people with panic attacks also suffer from agoraphobia. Both are treatable. Please consult a Psychiatrist.
Next Steps
consult a Psychiatrist
Health Tips
watch relaxation techniques on YouTube e.g breathing techniques and Jacobson progressive muscle relaxation techniques. practice them twice a day. regular walking and focus on physical fitness. avoid smoking and drinking alcohol. avoid excessive amount of coffee and tea