These are just two tests you have to get yourself through to move towards an improved quality of life. If your surgeon didn't want these tests done, he would be negligent. They are very basic tests to give him the information he badly needs to move forward.
It is mind over matter. Yes the manometry is a challenge. I guarantee they'll spray something in your nose to numb it. They can't numb your esophagus, because they are looking to see how strong your swallowing reflex is. If they numbed it, they wouldn't get a correct read.
The biggest problem for me was NOT swallowing...the urge is to swallow, because you feel something in your throat and want to swallow it down. You can only swallow when they tell you to, because they need to see the reflex clear of any other swallowing you might do on your own. You need to use visualization and breathing to get you through.
For me, the hardest part of the 24 hour PH monitor was not being able to take any PPI's or antacids. It was rough, but I just drank lots of water to help with the reflux.
It's up to you whether you go forward with this search for answers. You are the only one who can gather the strength to get through these procedures. You can do it, I've no doubt, but you are the one who has to believe that. You'll have to decide how important it is for you to seek a surgical solution.
Your surgeon can't know if and how to do your wrap if he/she doesn't know how strong your swallowing reflex is.
Good luck, Stormienite. We're here for you!