Thank you for sharing.
I'll share a story to help destigmatize. A few months ago I was taken completely out of commission by GI symptoms, just hours and hours of pain and vomiting. It turned out I had an infection, but the infection caused there to be shapes on my intestine that apparently looked vaguely like Crohn's disease on the MRI (or something, I'm not a radiologist, my understanding is pretty vague. There were bubbles in my intestine from bacterial respiration).
So I got a colonoscopy. And it turns out I'm fine. Drinking the prep isn't my favorite thing, but it's a task that gets done.
If two gallons of salt water and a trip to the doctor is all that stands between you and seeing your daughter's wedding, make it happen and you have nothing to be embarrassed about. Everybody poops and everybody gets a colonoscopy.
I got hemorrhoids afterwards too. Cutting corn kernels (if you know, you know) out of my diet made them go away. Afterwards I could eat them again. Life is strange.