Most people have sedation for their endoscopy, and you will be unaware really of what's going on and you will not feel the biopsies. I've also had an endoscopy without sedation and the biopsies were only a slight pinching - for me I find an endoscopy with no sedation fine, but if you are nervous and its your first one, take the sedation and enjoy a nice sleep after, I promise you'll be fine.
The manometry is not particularly pleasant it's a tube that goes down your nose and gullet and into your stomach, you then have to swallow water at certain times making sure you don't swallow in between - so either slightly bite your tongue or breathe with your mouth open in between the swallows - although its not pleasant it's over in 10 minutes.
The PH test is another much much thinner tube put in where the manometry was, this is attached to a battery pack and you wear it for 24 hours, any time you feel a symptom you press a button, I would eat as much food as possible to set your reflux off
Do let us know how you get on.
LPR, Hypothyroidism, Glaucoma, Dry Eye Syndrome, Positional Vertigo
"We have invented our own valve now - so wish us luck!"