ok, so i looked it up and its "sexually transmitted infection
i have been with my husband for
a total of 20 years and he is the only sexual partner i have had. also, what does an STI have to do with sore breasts? i didnt find anything on the website as that being a symptom. be gentle w. me..you are dealing with a self-diagnosed hypochondriac. i think after reading it all, ive developed some symptoms..LOL.