Part of my sphincter feels swollen and hard. had some bleeding a while ago, i do have internal piles though. no pain, nothing visible bit of diarrhea?

Internal hemorrhoid: Internal hemorrhoids are painless and they are the swelling of the veins of the anorectal area. Your symptoms are similar to those of internal hemorrhoids. You should consult a doctor to confirm diagnosis.

Constipation: Control of constipation and used of hemorrhoid suppository with steroids may be helpful. Follow up with PCP