Sounds like you are developing or already have symptoms of claustrophobia- irrational fear of closed spaces However this needs further thorough evaluation by a psychiatrist to rule out any other issues.

Hi! If you have been battling with the aforementioned symptoms for quite long time and it's affecting your social and occupational life,you need to consult a psychiatrist and also simultaneously see a clinical psychologist who would help you together to get rid of  your problems

Hi Its called claustrophobia Fear of enclosed spaces From where you feel that If something happens then escape is not possible It stems from certain kind of anxiety Since when are you feeling like that. Did you have a recent experience of this sort or did you hear this from someone Need to talk in detail. CBT SESSIONS will help you Consult with me or any psychologist for therapy and counseling online

Hi I appreciate that you reached out with your concern With the given details I think you are showing symptoms of Anxiety. Anxiety has various types. Right now you can start healthy living by Eating 3meals a day Regular walk half an hrs Maintain sleep hygiene Do mindfulness by focusing on present (reminding yourself to stay in present) Do Jacobian Muscle Relaxation techniques (check from u tube)

It's a anxiety along with phobia ..you need to remove your fear with more exposure, start yoga , meditation along with we will start your medication, it will help u out more