I need advice :/

When I was drunk 2 months ago I decided to have sex with an acquaintance. Everything was ok until he forced it in my anus. As soon as I got home I was bleeding so much for like a day or so. I didn’t go to the hospital because I thought it would heal on it’s own. How that I have constipation it feels like the wound opened up again because I’m bleeding again but not at much as before. Is this ever going to heal ? Should I see a doctor. I really don’t want anything up there that’s another reason why I’m scared to go...