pain after manometry

hi!! my doctor suspects i may have achalasia and i had a manometry this morning. i actually didn’t gag at all but it HURT pretty bad the whole time it was in my throat. the nurse said that “the reason it hurts is probably why you’re in here getting this test!” but a lot of things i read said it isn’t supposed to hurt?

its been a couple hours and i still have pain and i’m freaking myself out thinking there’s a perforation or something. it feels like a really really bad sore throat, a bit like a knife to the back of my throat every time i swallow. is this normal? did this happen for any of you?? i know i probably just need to give it at least the rest of the day but i get really anxious about medical things :’)