Thanks for the thanks about the forum. But unfortunately, I cannot help. You don't need an STD expert, you need a good gynecologist--and the evidence is you have one. You don't describe you current STD risks, but even if no such risk, you still could have PID. That's because one episode of PID predisposes to recurrent Fallopian tube infection with non-STD bacteria. Part of the evidence that your doctor knows his business is that he treated you exactly the antibiotics that are recommended in that circumstance. Pain often persists long after PID clears up. That's really not an STD issue; it can occur following any abdominal infection, and it does not mean that your infection wasn't cured.
So my advice is to continue to follow up with your gynecologist and follow his advice; or if unsatisfied, ask for him to refer you for a second opinion.
Good luck-- HHH, MD