I think it varies according to your needs Red. I had one years ago and had heavy sedation. My hubby had one a few years ago and was offered sedation but turned it down and was fine. Sedation does keep the anxiety to a minimum. By the way, they found nothing with me, turned out to be IBS. My hubby had some inflammation which was treated with anti ulcer medication. The majority of the time, this is the worst that they find in the absence of other symptoms.

Good luck.