Is a non-sedative colonoscopy recommended/ok? i have read it is common in most countries, but not the u.s. i am concerned about side effects (for a few reasons), but also don't want pain. heard it is usually not that bad/painful w/o sedatives?

Some people find colonoscopy easily tolerable without sedation, others don't. Sedation is common because it often makes the procedure easier and quicker -- otherwise it can slow things down in order to keep discomfort to a minimum. A middle ground may be no sedation, but an IV in place so instant sedation can be used if needed. Discuss with the clinic or doctor doing the procedure.