You've definitely had a rough go of it. I fervently hope that you find relief very soon. Do you have a reason you don't want to have another manometry? (I'm guessing you've got a strong gag reflex) I know it's not a fun test (I've had 2), but if that's what you need to do, I'm sure you can find a way to make it through.
I hope you find answers ASAP. We're all here to cheer you on!
Hang in there!
Words of wisdom by Eckhart Tolle:
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”