Hello. Welcome to HCM and thank you for your question. I understand your concern. Fear is classified in types of anxieties, in medial terminology it is called situational anxiety. All types of anxieties have one thing in common - a spike on adrenalin levels during the episode, which is accompanied with its classical symptoms: high heart rate, high blood pressure, sweats, shortness of breath, etc. With highest probability you may have panic attacks, based on the symptoms provided, and you may be suffering from general anxiety disorder. These episodes of panic attack are with no known cause, but their triggers are well-known. They may be triggered from crowded places, narrow passages, etc. and are accompanied with the feeling of one s sensation: If I fall to the ground, who will help me, how can I get out, there is no room? . This condition or state, it is not a disease, mandates a consult with a psychiatrist, and if it affects your quality of life, then you should be put on treatment. A reasonable approach would be combining a benzodiazepine with an anti-psychotic agent. For further determining of dosage and frequency of use, discuss with your psychiatrist. I hope this helps. Take care and wish you a good health. Best regards, Dr. Meriton