I am afraid so, especially if your having alot of diarrhea and bleeding or blood in your stool. or mucus. What medications are you on? If you are then i would go see your doctor asap and tell him your symptoms and see if you can resolve the matter it's important you catch it early so it can be resolved early with the proper diet and medications. Keep to a low residue diet for now which will give your system time to rest. No Diary products and a low fiber diet