I had the PEG done in the third week of my radiation, 1 day after my second chemo treatment, and a couple of hours before my radiation that day. I actually don't remember my radiation from that day because they wheeled me down after my PEG was inserted and I was still a little groggy.
Make sure that you get good instructions as was said earlier. It isn't hard to understand, just new. It can be a little tricky at first, but once you get the hang of it, there isn't any problem. I was ultimately very glad I had one put in.
I am also very glad that this week I am getting it taken out:)!!!
Sarah