What should one do if haidh begins during the course of fasting?

Answer

If whilst fasting, haidh begins, the fast should be compulsorily broken. But one should not eat in front of people.

If you happen to be in the state of haidh and it ends during the day of Ramadhaan, then it is compulsory to stop eating and act like a fasting person. However, you will still have to make qadha of this day.

If you are in the state of haidh before the fasting day begins, then you may eat at any time during the day, but not in front of people. You may not fast.