Hello, I Am A 14 Year Old Male And Today

Hello, I am a 14 year old male and today made a weird discovery. I had a little discomfort from the anus area. I have discovered there is a pea-like lump on the inside of my anus. It doesnt hurt that much but it causes discomfort when I have bowel movements. I don't know if this is normal, or something to worry about?
I am very active and not overweight at all. I don't eat healthy all the time, but occasionally. If anyone could help, it would be GREATLY appreciated.