Yaoi cons when reading

Hello everybody through my 4 almost 5 years with yaoi I noticed 4 things I hate when it comes to yaoi that makes me gag or throw up and people might not agree with it but this is just from my opinion from the amount of yaoi I consumed.
1: the needle, (idk the real name of it it’s just what I call it) that goes inside of the tip for BDSM
2: blood, the only blood that triggers me is when the uses asshole starts to bleed from objects poking inside of their ass or from rough sex and blood from the seems cum like it makes me wanna throw up
3: piss, when the seme refuses the uke to pee they pee during sex or just when the seme dick is good but it fucks up the ukes bladder leading them to pee while having sex
4: when the ukes throw up in general when they sees something disturbing or when they drink to much alcohol where its actual throw up and not rainbow and glitter

Ya so these make me gag or throw up in the middle of the night so yeah pretty bad but what are y’all’s cons????