Must one continue fasting with severe diarrhea, pain, exhaustion, and dehydration?

It is permissible for a sick person to break their fast in Ramadan if fasting becomes difficult for them, or if it exacerbates their illness, or delays their recovery. Diarrhea has different scenarios: if it is mild and does not affect the fast, then breaking the fast is not permissible. However, if it is severe and causes fatigue and exhaustion, then it is recommended to break the fast. If there is a fear of harm from not taking medication, then breaking the fast becomes obligatory. The one who breaks the fast must make up the days after Ramadan.