Don't worry about the biopsy. If you have celiac or helicobacter it doesn't mean anything about surgery. Most people get a hiatal hernia sometime inlife and never know it, and most don't cause symptoms.
Versed is an amnestic, and muscle relaxant. It does not relieve pain. I want to remember what goes on, have had enough procedures to be afraid of losing control,so I refuse it. They do tell you not to drive, sign anything or make any important decisions after having sedation.
Bravo capsule is normallyplaced without anesthesia or anelgesia. Mine was just pushed down my throat despite my horrible gag reflex. They tried to do it with me sitting up, but I just pushed them away. I was able to barely tolerate the procedure lying down, vomiting all the time. But, as I said, my reflex is the worst imagineable. Even my dentist hates me. Most people tolerate it fine. There isn't much pain unless you have a wide open LES - but that's the acid coming up un-neutralized. I had to do without my acid reducers for 10 days before the procedure, then the two days of the test. I kept reading the meter, and recording the results with times. It kept saying 1.2. Good thing I did! The capsule fell off after 24 hours and they tried to make me do it over!!! It was great to have my own results because they accepted the 24 hour notes. Most capsules take 5 days to a week or more to fall off.
Manometry is the one procedure you can't be sedated for. Anything, the slightest pain killer - there's really no pain - could upset the results of your swallowing test. It's only for a few minutes - normally. Of course, for me, as usual, extra fun. My nose nose passages are so small and bent from multiple breaks that they couldn't get the tube down after 4 tries. Just kept curling up. So, lucky me, I got to have a baby endoscope shoved down my nose, after dilation, and a wire run through that, then the mano tube run over that and the wire pulled out. But they DID get the test done. Good thing too, because of my post-polio status I don't swallow well and needed a partial wrap instead of the full one. Yes, I sat there through the whole thing without sedation or pain meds except for the usual nose numbing. ... crying, but putting up with it because I knew I could die from a twisted stomach stuck up in my chest if I didn't get the operation, and there was no way they would do the op without the testing.
For Bravo and maybe manomtry you should be told to not take most pain meds, all cholesterol meds, and a page list of others. If they don't give you a list, ask about it. some of these things can interfere - supposedly.
If your condition is bad enough to put up with surgery after reading all the posts, then it's bad enough to put up with the tests and not complain. Well, it's fine to be ouching all the time.