While I have lost all trust in vaccines and almost regret allowing my children to be vaccinated, I do have the colonoscopies. My first one 16 years ago discovered several pre cancerous polyps and I have no family history of colon cancer. I now go every 3 years to have polyps removed. Luckily the first two I had, the doctor prescribed the clean out cocktail. After that the insurance companies make them push the over the counter crap that will rip your insides up and took me almost 2 years before I felt normal again. Now when I go, I refuse to use the over-the-counter and require the doctor to write the prescription. Many insurance companies won’t cover it and it is expensive, but I’ve also learned that many offices have “samples“ they will give you. If you do decide to get another one, make sure you get the prescription clean out not the OTC recipe you buy in the drugstore.