Throat is irritated, red and slightly sore month after giving oral with another man. also red bumps back of throat. days after went in for std but neg?

STD Still Possible: It may be coincidental that you have a sore throat post oral sex. It is possible that you may have picked up a viral infection, such as herpes, have gonorrhea or chlamydia that wasn't picked up or tested for previously, or may have been irritated in some manner. I suggest you get re-evaluated by someone who is knowlegeable in mm sex and be honest about what you were doing and your concerns.