Àlendronic acid

I have recently started taking Alendronic Acid tablets following hormone treatment after breast cancer surgery and now Radiotherapy. I haven't taken it for long, but have had no side effects so far. It has to be taken once a week with a full glass of water, first thing in the morning while remaining sitting or standing upright for 30 minutes before any food, drink or other medication.
Some people find this very inconvenient, but I take a walk first thing every morning so it is no problem once a week to use the opportunity to stay upright. a friend uses the time to check her emails or social media.
I hope you get your gut problems sorted soon.