L.D.
I regularly have abnormal pap smears, and have had two coloposcopy procedures in the past few years. It worried me too, that I would continue having the abnormal cells. But I spoke with my Doctor who says not to worry. When they send those tissues off to the lab, they test them, mine have come back as abnormal, but not cancerous. He monitors me carefully, I have paps more often than most women, and though they continue to be abnormal, they are no worse than before, just NOT normal. So I would not be overly concerned until you better understand what, exactly, the coloposcopy turns up this time.
I would consult with your new doctor though. You probably should be monitored more carefully than the average woman, given your history. And from my experience, the procedure should NOT be incredibly painful. Unpleasant yes, but not torturous.
I hope your experience is better this time, make sure you ask your doctor to explain
your results and situation fully. And if he doesn't take the time, or have the will, I definitely recommend finding a doctor who will.
Good luck.