Making Up Fasts
Scholars have said that if one dreams of making up for missed Ramadan fasts after the month has ended, they may fall ill. However, it was said that one who fasts voluntarily will not fall ill that year, based on the noble hadith "Fast, and you shall be healthy."
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.