Good morning, I,m a 45 year old female, 175 pounds and have a hemorrhoid that's been there for many years. It's external but has no pain or swelling. Last night when showering I found a pea sized hard lump INSIDE the skin of the inside of the anus and it has me so scared. It's in a different location than the external hemorrhoid. I looked in a mirror and you can't see anything because it's inside the skin. There's no pain but I'm so afraid it's cancer. Thank you for your advice.