ANSWER:

No problem in this even without any genuine reason as this is a voluntary fast and not mandatory.

If you are sick, it’s permissible to break even the mandatory fast!

QUESTION: I was fasting on day of Arafah but had to break my fast due to severe Migraine (headache). Is it a major sin to break fast as I was told by some people that “‘it’s better not to keep fast than to break it?'” Do I have to make up that fast? Is the ruling same as of Fasts of Ramadan?