Hi,

I'm 22 so I know the chances of me having cancer are much lower but I don't feel like doctors are taking me seriously when I say I'm worried about having cancer. My mom passed away from breast cancer so I have health anxiety but this feels like it isn't just me stressing unnecessarily. 

I've been having constipation for over 3 months now, feeling like I'm full all the time and then started finding small spots of blood when I wipe. About 2 months back I found a hard lump in my rectum. It is the length of my middle finger deep. It feels pretty big and smooth to tough but I don't have any pain when touching it. This is what is blocking my bowel movements. 

I went to a walk in medical centre and they told me it was probably an anal fissure and prescribed me some laxatives. I went back to the doctor a few weeks ago and told them it wasn't improving and she increased my laxative dose. I'm still having to take laxatives to go to the toilet and the lump is still there. It is really stressing me out but I'm reluctant to go back.

Could this be a cancerous lump? Am I stressing for no reason?  If it is an anal fissure, would there be a hard lump? 

Please help