Hi everyone. I was diagnosed with IBS about two years ago, but I've been chronically constipated since my early teens (I'm 24 now). Anyway, I occasionally experience rectal bleeding. Usually just a little bit on the toilet paper. I saw my doctor for it a few years ago, and she couldn't find any evidence of hemorrhoids, and said it was probably anal fissures. Well, for the past few weeks, I've been bleeding regularly. Like, every time I have a bowel movement. And it's been quite a bit of blood. On Monday, for instance, the toilet was just full of bright red blood (it's always bright red). I'm a little worried. My constipation was quite bad a few weeks ago; it took over a half an hour a few times. So I'm wondering...could I have injured myself? I have some rectal discomfort, but it's pretty mild. I saw my doctor last week for allergies and to get blood work done (all of it came back normal), but I wasn't too worried about this at the time so I didn't bring it up. UGH. Also, for many years, I've experienced this awful pain. It's like someone's stabbing a knife up there. It's always quick but excruciating. It doesn't happen on the toilet, either. Just at random times. My doctor said that was likely from the anal fissures, too. I guess my main question is: should I be worried? Do I need to go to the doctor again? I have a terrible reputation as a hypochondriac, so I don't like to go unless I have a good reason, haha.