Not related to the blood....but I remember when I tried Lialda. I will never forget it. I only took 1 dose. about
12 hours later, I started having intense intestinal pain. I could literaly feel where the pill was traveling inside me. My pain traveled throughout my intestines and made the rounds through the colon.
Pretty much 24 hours after taking it, as it is a once a day pill, all the pain was gone. I never had so much pain as I did from this...I almost went to the hospital. It was very weird but hurt like nothing I had experienced before. The only other pain that was as bad was when I had gallstones.
In answer to your questions though...you should see a dr and just make sure it is nothing serious. Play it safe.