Hi Candice, I have gone through a similar experience as yourself. And I had the same feeling of confusion as my specialist did not want to give me any details. I did a lot of research on my own to find out what those terms meant, etc...
I understand that the LEEP procedure does remove the cancerous cells, but and it could also let them know if the cells had spread any further, from what my doctor had told me.
My experience with the LEEP was that it was quite painful. I was not aware of what was going to happen as they called me in to discuss the results of the biopsy and wanted to do the LEEP that very moment, so it was a shock to me.
I would ask for a sedative if you are worried about it. They did attempt to 'freeze' the area but it did not do much for me.
The great news, and what I am very thankful for is that they found these cells and are getting rid of them.
I wish you all of the best, Alli