claus·tro·pho·bia
 /ˌklɑːstrəˈfoʊbijə/  noun   [  noncount  ]
  1 : a fear of being in closed or small spaces
   She doesn't go in elevators because of her claustrophobia.
  — compare agoraphobia
  2 : an unhappy or uncomfortable feeling caused by being in a situation that limits or restricts you
   the claustrophobia of small-town life