Hi!
My first thought upon reading your post, is have you been tested for Herpes Simplex Virus types 1 and 2? If not, I certainly would test you for them--this is usually best done with a blood test for antibodies to the viruses.
PID can't be caused by trichomonas--that usually only resides in the vagina, and not the upper genital tract. PID usually is caused by several different organisms, and not necessarily always gonorrhea and chlamydia, although these are the most common.
I don't know whether your liason partner also has other partners, but would assume that she probably does. Therefore, it would be very cloudy as to who gave what to whom.
I am also assuming that your current concern is for your wife. If she were my patient, I would tell her that she should definitely be tested for STDs as well, just as a matter of course. "Inflammed ovaries" could result from many different causes including PID, endometriosis, or even cysts. STDs don't typically cause inflammation of the kidneys.
Also, PID usually doesn't show up 2 years after exposure--usually its pretty quick.
Whatever the case, she should be tested and treated if positive--no matter what else happens!
Good luck!
Dr B
The above post was intended to say Nephrologist not urologist.