I’ve been in a long term relationship for most of my adult hood or fwb relationships. i’m currently 24, I never got sick. now I’ve been interested in having more causal s3x, but i noticed i keep getting sick cold symptoms the day after. I’ve gotten checked for STIs each time and nothing.

1st time - woke up with a sore throat, cleared after 2 days.

had sex again with someone else - 2 days later had pink eye, and a sore throat with a cough and sniffles.

a week later. hooked up with another guy - mild sore throat, stuffy nose, feeling of just feeling sick, sneezing .

fourth time - got tonsillitis lasted about 3 days

5th time got head from a guy no sex, just fingered but ended up with UTI

i’ve just been so turned off at the idea of sleeping with another man, as all i can think about are his gross germs that don’t mix well with mine. It’s starting to really ruin the idea of sex for me as i think their cock is dirty. i’ve been looking at post online and people saying they don’t brush their teeth for days, and don’t shower for weeks and now everytime i want to hook up with a guy i get so grossed out and don’t want him to touch me.

I love bdsm, rough sex, group sex, orgies, gang bangs but the more i get sick the more the whole idea turns me off. what can i do to prevent this?