So scared of colonoscopy/endoscopy tomorrow

I am soooo scared!!!
I hate the idea of drinking that prep with my herd!!!
Plus, I am worried about what they will tell me after.
I have been having an acidly taste in my mouth, bloating, burping, feeling like food is all the way up to my throat and gassy.
I can feel or hear gas moving around sometimes too.
I get lower gi tract discomfort too and get cramps with diarrhea sometimes.
Does any of this sound familiar?
I had a cat scan of my abdomen and pelvis and the dr said it looked fine.
Sorry I'm so anxious!!
Any help is appreciated, especially about doing the prep tonight.
Instead of golytely that I hated before, I'm doing Moviprep.

Thanks!!!

Prepopik is the easiest prep I've ever used, followed by Moviprep. Good luck on your testing.