I fully endorse getting a colonoscopy done; relieves a stressor in your life and the anesthesia is heaven.
Hope nobody has my experience; after a day of Gatorade and Metamucil I was (according to my doctor) still too sludgy. Had to undergo a second day of Gatorade and Metamucil. But at the end (pun intended) no polyps or other issues. w00t!!
But I'll never be able to drink Gatorade again.
I don't think I've ever drank Gatorade. AFAIK there's no pleasant way to clear, but some seem better than others.
Here's notes I took over ten years ago from website:
Preparation
Your colon must be completely empty for the
colonoscopy to be thorough and safe. To prepare for
the procedure you may have to follow a liquid diet for
1 to 3 days beforehand. A liquid diet means fat-free
bouillon or broth, strained fruit juice, water, plain
coffee, plain tea, or diet soda. Gelatin or popsicles in
any color but red may also be eaten. You will also
take one of several types of laxatives the night before
the procedure. Also, you must arrange for someone to
take you home afterward--you will not be allowed to
drive because of the sedatives. Your physician may
give you other special instructions. Inform your
physician of any medical conditions or medications
that you take before the colonscopy.
This from:
http://www.niddk.nih.gov/health/digest/pubs/diagtest/colo.htm
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I encountered something online by a guy who due to his particular digestive problems had to have very frequent colonoscopies and he used clearing methodology that made it easier for him. It's a good idea to search for stuff like that.
He used a beer bong, such as college students use to drink large amounts of beer really quickly. He said it made it easier to get the stuff down.