Is there a connection between reading Surat Al-Baqarah and the persistence of symptoms of colon pain, headaches, and diarrhea, which the questioner has been suffering from since 2003, despite her commitment to dhikr and fasting?

It cannot be definitively asserted that Surat Al-Baqarah is related to the questioner's condition, but the Qur'an is a source of goodness, well-being, and blessings. It is recommended to consistently recite Surat Al-Baqarah and the rest of the Qur'an, and to turn to Allah with supplication during times of responsiveness, for He removes affliction and benefits from what has descended and what has not. One should consult specialists in Ruqyah Shariah (Islamic exorcism) and avoid charlatanry. It is also beneficial to drink Zamzam water while reciting Al-Fatihah. Charity is beneficial, as is frequently repeating: "Hasbiyallahu la ilaha illa huwa, 'alayhi tawakkaltu wa huwa Rabbul-'Arshil-'Azeem" (Allah is sufficient for me; there is no god but Him. In Him I put my trust, and He is the Lord of the Mighty Throne) seven times in the morning and evening. Also, consistently performing four rak'ahs of prayer at the beginning of the day, and reciting the narrated supplications for lifting affliction.