Answer:
(Fatwa: 1713/D=238/K=1430)
In the case mentioned above, you are permissible not to keep fast. Later, when feel you can keep fast and the days are shorter, make qadha of these missed fasts. But, if you are not able to fast in future too, pay fidyah (expiation) of each fast which is 1.633 kg wheat or its price.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
