Water fasting on period

I'm doing a 3 day water fast. I know if I dont do it now I will have trouble convincing myself later. Im on my 4th day of my period.. It is for health purposes not weight.... anyways is it bad to fast during your menstrual cycle? I cannot find anything on this actual subject for water fasting. I only see intermittent fasting and Ramadan...

I dont want to hear opinions please I just want to know if anyone has any actual evidence if it is ok or if they've done it themselves... thank you.