Is it normal that i was forced to have sex...

No, this is the opposite of normality.
Imagine a line. This line represents normality. Anything on the far right (in non political terms? signifies absolute normality and will never not be abnormal, like the sun rising (normal), and that animals have a circulatory system (also normal). Anything in the middle of this line is weird like enjoying the smell of poop, liking the sight of blood (both weird).
Anything on the far left side represents anything absolutely abnormal and are mostly absolutely horrific like the murder of 6 million Jews, the rules on SCP Wiki (jokes) and the atomic annihilation of Nagasaki and Hiroshima.
Now if one were to stand on the far left of this theoretical line of normality and used a powerful sniper scope to peer at the horizon, they'd see your post, withering there in the depths of Hell as Satan does his absolute best to destroy this creation. Unfortunately the events that transpired in your life are so disgustingly, horrifically, extra-abnormal that even Satan's own flame is unsuccessful in destroying what happened in your childhood.
You should report them to the proper authorities, not just for your safety but also for the safety of anyone your brother/s encounters again whom they see as a potential rape target.

, brother sex is a normal thing but its usually between willing brothers as sexual experimentation . i think if they were sucking you and giving you some pleasure its ok they were not meaning any harm to you. if they were just using you as a cum dump you know the difference. Just be sure you know what you are talking about , why would they rape you ? Are you sure they were not just including you in sex experimentation. its your call . BTW you said they would hold you down , are you sure they were not just normal mounting you like hands on your hips or did one restrain you while the other raped you? Soul search the issue. your heart will tell you the truth. i can't imagine you brothers making you cry for three years , i mean at some point you would get pretty comfortable with anal sex. this is a good forum to discuss rape and child sex in any case.

OH GOD! SORRY THAT HAPPENED!

NO THAT IS NOT NORMAL,YOU NEED TO GO UP TO YOUR PARENTS AND SAY YOU WERE RAPED/MOLESTED....THATS NOT NORMAL....TELL SOMEONE!!!

Sorry dude, but that's rape. No matter how old you or they are now, TELL THE AUTHORITIES! You never know if they're still doing it to kids or not. It will be hard to do this to your brothers, but it might protect kids today or in the future.

I'M SORRY. PLEASE SIT DOWN BECAUSE You were raped, NOT NORMAL. IM SO SORRY.