Does feeling gas escape during prayer, not crying when reading the Qur’an, and experiencing chest tightness and heart palpitations indicate Allah Almighty’s wrath?

What you did by completing the prayer and not paying attention to what you felt is correct, as long as you were not certain of the occurrence, because the Prophet, peace and blessings be upon him, said: «He should not leave until he hears a sound or perceives a smell.» Perhaps what you felt was from the whispers of Satan, so you must ignore it, maintain the obligatory prayers, and increase the remembrance of Allah.