Hi and welcome to Healthcaremagic. Thank you for your query. I understand your concerns and I will try to help you as much as I can. Yes it can be safely used. These side effects that you mention are very rare so this should not worry you.. also you need to increase fiber intake and you may at times need to try a laxative such as Fleet Phospho-Soda, Milk of Magnesia, or glycerin suppositories. If there wont be improvement on these measures, you should consider doing diagnostic tests such as colonoscopy, anal sphincter manometry and food allergy testing. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.