Most months my 13 year old daughter gets diarrhoea during her period. Saturday she spent 2hrs on the toilet and again this morning, once it passes she is fine and brightens up really quickly. She suffers rather heavy periods with pain so this really tops it off for her (she does take floradix to help with iron). She’s had her periods for 3 years now and is regular so that’s not an issue and I really don’t want to consider the pill for her due to history of breast cancer in the family. I’ve never suffered myself in any capacity with periods so I feel at a loss! Does anyone have any advice? Found any supplements that have helped?