So I recently put braces and I am starving each time I try to eat something the pain kills...

ahahah that is actually not a bad idea.. Why didn't I think of that when I got my braces?

But I'm surprised that the pain has lasted for so long.. for me, I was able to eat normally after less than two days.. What is the problem? Is it the braces themselves? Or is it hitting the braces with your teeth when you chew (this problem completely goes away soon, don't worry)

As for your question, I watched this video recently and he has a lot of gory recommendations:

https://www.youtube.com/watch?v=9xOybrN2eDo&t=515s

When I had braces and would go to get them tightened my parents would always coincidentally apparently... Buy pizza, that I couldn't eat because my teeth were in so much pain.
Good luck suffering. Sadly I don't know much gore manga.

Sorry not a recommendation, just wanna share that i still remember those days, I also have braces so I can relate ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

Ahh, I know your pain. I've had biobloc, braces (twice), and invisalign. Here's some horror/gory:

http://www.mangago.me/read-manga/wolf_mary/

http://www.mangago.me/read-manga/you_will_hear_the_voice_of_the_dead/

http://www.mangago.me/read-manga/vinland_saga/

http://www.mangago.me/read-manga/prison_lab/

http://www.mangago.me/read-manga/ana_satsujin/

http://www.mangago.me/read-manga/parasite/

Also,

http://www.mangago.me/read-manga/baraou_no_souretsu/

This one is very good, my #1 fav tho

http://www.mangago.me/read-manga/tadaima_okaeri/

http://www.mangago.me/read-manga/prison_lab/

http://www.mangago.me/read-manga/dead_tube/