In the name of Allah, Most Gracious, Most Merciful
All Praise is due to Allah and his Messenger (PBuH)
Sister, I think this fatwa may apply to you, since you suffer from a medical condition.
Fatwa on Fasting
Scholars have unanimously agreed that a patient is allowed not to fast, as Allah, Exalted be He, says: (Whosoever of you is sick or on a journey, (let him fast the same) number of other days. Allah desireth for you ease; He desireth not hardship for you.) (Al-Baqarah: 185)
Based on both the Glorious Qur'an and the unanimity of Muslim scholars, a patient is allowed not to fast in Ramadan. But, the question now is ‘which kind of illness permits a Muslim to abstain from fasting’.
The answer to this question is that any malady that fasting may aggravate or delay the cure of, permits a Muslim to break the fast. Similarly, when fasting causes the patient to go through tremendous pain so that he would be unable to perform his job and earn his living, he is allowed not to fast. Imam Ahamd was asked: When is a patient allowed not to fast? He answered: If he is not able to fast. He was again asked: Is a man afflicted with fever unable to? He replied: What malady could be more serious than fever?
That is a snip from the Fatwa.
I hope this helps you and I hope you recover from your illness so you can fast properly.