Agoraphobia is when an individual has excessive fear of being in a situation in which escape may be difficult or assistance unavailable if one experienced a panic attack or panic-like symptoms (e.g. sudden attack of diarrhea). This fear typically leads people to avoid a variety of situations including restaurants, waiting in lines, traffic jams, shopping malls, parks, isolated places, being out of town, driving situations, elevators, tunnels, small crowded places, buses, airplanes, trains, boats, health care visits, being at the hairdresser/barber, movie theatres, sports arenas, being alone at home or being away from home.

Some people with agoraphobia are able to enter these situations but do so with extreme dread and discomfort. Some individuals with agoraphobia also find they are able to enter feared situations when someone else is with them (e.g. family member, friends, or even the presence of strangers) but they are unable to enter the same situations when they are alone.

From Anxiety BC

(The root meaning of agoraphobia is "fear of the market")

This might be closer to what is being discussed:

For some people shyness or "social anxiety" does begin to create problems such as social isolation/loneliness, unemployment, limited educational or career achievements, feeling distressed much of the time, living in fear of panic attacks triggered by social situations, or avoiding important things (e.g. work related activities, getting together with friends or family). If the social anxiety creates this kind of interference in every day life (if gets in the way of social, occupational, school, or home functioning) then it is described by mental health professionals as "social anxiety disorder" (or "social phobia").

From Anxiety BC