Sorry for the delay in my response.
Well the condition that you are suffering from is a type of Phobic Anxiety disorder called as Agoraphobia, in which a person likes to be in the confines of his home , surrounded by near and dear ones and becomes extremely uncomfortable , apprehensive and shows traits of anxiety such as palpitation( that is increase heart rate),fearfulness, feeling of impending doom, chest tightness muscle cramps and shakes, breathlessness,etc when he is exposed to an unfamiliar open place surrounded by unknown faces.
This is different from claustrophobia and somewhat close to social phobia but has its own uniqueness.
The good news is that it is treatable, provided that you have the motivation and will power to do it and i am sure you have both.
The treatment is as follows---
1) Cognitive behaviour therapy which is a type of psychotherapy (professional counselling) offered by a trained psychiatrist or a clinical psychologist.
2) Anti anxiety drugs such as buspirone or lorazepam or clonazepam.
3) Ant depressants such as Fluoxetine or paroxetine as they have good anti anxiety effects.
All these treatment should be provided by a psychiatrist , and it will be foe few months only and yes it will not give you any sort of label which might scare you., so relax.
Just tell your sychiatrist that what your schedule is so that he does not give you drugs which make you sleepy or sloppy in morning , plus what drugs i have mentioned have least side effects and will not affect your lifestyle and you may be discrete about your therapy to others , as they wont be able to know .
Wish you good health.
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