Anal sex

Last night I had a drunk three some with two guys and both of them had anal sex with me. Neither of them used a condom and I’m worried about STDs. They also didn’t use lube and it hurt so bad but they didn’t stop when I asked. When I pooped this morning there was dark red blood in the toilet and that happened two more times. I’ve had to poop every 45 minutes today and my butt hurts so bad (I’m sorry for being so crude). I’m not going to report a sexual assault because they were drunk too and I consented to having sex with them but I didn’t want to have anal. I just need to know what to do next. should I get tested for STDs? Is the bleeding, pain and excessive pooping normal? Anything helps.