I think I have bum problems?

I am 13 and for a few years now I have suffered from light bleeding when I go the toilet for a poo. I think I was wiping too hard which caused slight bright red blood to appear, but since I recently starting wiping a lot softer it has stopped. Should I go the doctor to check everything is ok even though it has stopped now? Also, I seem to have a small lump each side of my bum hole when I'm wiping which I noticed recently; is this normal and I just haven't noticed before?