It's standard to insert the Bravo wthout sedation. If you don't gag unusually it's no big deal. Sedation is used way too much here, not in other countries. (Versed gives you amnesia, not a pain reliever.)
If you want to read my adventure I'm sure you can find it with the search. I felt it being pinned on and all the time it was there. Since my pH was always 1 - 1.2 because of a wide open LES, I was miserable. But most people only have regular reflux.
A couple of things they won't tell you: The capsule will remain there for a week or up to 2. If it bothers you to the point of intolerance after the 2 days needed to get the readings, you can go to the ER and get sedated and have it removed. Look at the monitor and record the numbers yourself along with what you are eating and whether you are sitting, lying down or whatever. If the things falls off early like mine did, you might get away with not having to have the test repeated. Worked for me!
Typing today is interesting because I had 3 trigger fingers repaired yesterday. No sedation! No need to have amnesia for a 20 minute operation! Couldn't feel anythng with local. I wand to watch, but they insister on hangng that stupid sheet in front of my face. Since I had watched some utubes, I could tell when they were snipping bands and they would tell me about it. Best part was no IV, no recovery, no dizziness. I could have driven home, but chose not to 45 min in rush h our.