Bleeding after removing feces with finger.

I'm new to this forumn so hopefully I can get some insightful answers here :) I've always struggled with constipation, ive went everyday this past week but not as much as I should. So I decided I would "digitally" remove whatever feces wouldn't come out. When I was nearly finished I noticed my anus getting wetter (can't think of any other word to describe). I KNEW what it was so pulled out my finger and saw a decent amount of bright red blood. I wiped and there was some more. Not enough to tint the toilet water red but enough to damn near give me a heart attack. Im assuming it's an anal fissure. I've been reaaally straining to poop and have been lacking on the water intake (im my own worst enemy). Anyways I told my mom but left out the one important detail lol. I just yold her there was blood and not that I stuck a ridged old edgy fingernail up there. I may be answering my own question, but has anyone ever been through this before? I nearly fainted as my mom is a stage 3 colon cancer survivor and her early symptom was bloody stool. This has never happened before and I have a paper cut type thing on my anus.