What is the reason for the constriction in the heart, the distress, and the sudden and recurring hysterical crying without cause, which has been happening for two months and increases during prayer and recitation of the Quran, and how can one get rid of it?

You must seek the help of Allah Almighty, and increase your supplication, remembrance, and obedience to Him. Also, perform Ruqyah on yourself with legitimate incantations and invocations, as this brings relief from worries, expands the chest, and tranquilizes the heart. Concurrently, consult specialized doctors to identify the cause and method of treatment.