I am married, faithful,31,2 kids, 110 lbs, 5 5", active and eat healthy.I have had lower back pain that is getting increasingly worse for the past 6 mnths.I equated it to picking up my 4 yr old daily who is 50 lbs.During mid cycle especially and throughout cycle I have a dull crampy ache between my hip area accompanied by thick white discharge, sometimes creamy, sometimes like a plug before giving birth.I equated that to ovulating as well as I did that my vaginal area would become very full looking and well, ugly like it was engorged but not painful and turn purplish.I also had 2 UTI's that went away on it's own last month rather quickly.I went to dr for the back pain, my last pap was in 06 so I got a pap just to be current.Dr said I have a pretty bad internal yeast infection(no itchy,no cottage cheese,no soreness) and she also said I have PID.She gave me a shot in the rear of antobiotic.Dyoxycycline & Flanyx & a script to get an ultrasound to r/o abcessed ovaries.OK, what the heck is going on?My husband swears he's faithful and though she reassured me I can have it from bacteria, she thinks the test will show chlamydia.None of this is sitting well.Can this be something else.My pelvic feels like a water balloon is in there to the touch but no real noticeable distension and no real obvious cervical tenderness and no bleeding between cycles.Periods are 5-8 days long but that's norm for me, unfortunately.Any ideas or does PID sound right?