Hello! Thank you for the query. Such symptom can be due to IBS. However, it can also appear with some other conditions involving large intestine. Especially if you have had constipations before, are around 50, have some blood in stool or lost some weight recently. It is advisable for you to have some diagnostics. You should start with abdominal ultrasound, full blood work and colonoscopy. Hope this will help. Regards.