What Causes Inflammation In Anus While Stimulating Prostrate With A Pen?

About 3 days ago I read something online about prostate stimulation, so I decided to try it out myself. I used a pen (I now know it was a foolish decision) to try to stimulate my prostate. I felt no pain throughout the whole time, and i still don t feel any pain but the walls on the inside of my anus are inflammed. I don t know if it is the prostate, or if i could ve given myself a hemorroid, but the last two days it has been more difficult to pass bowel movements. After reading some things on the Internet, I m a little worried about what the problem may be. I posted a question on a different website (not an ask a doctor website) and people thought i may have scratched my rectal wall, or maybe even perforated it. I m really hoping the perforation is not the case. I don t feel any pain, but I m concerned about the problem. Please help!!