I'm 41 and I'm having both endo and colonoscopy and I'm nervous, is it simple

You will be asleep. So, yes, it will be simple. The drugs are great.

yes complication rate is really low for both the procedures they will sedate you so you likely wont remember much of it and they take a scope in about the size of your pinkie. You will go home the same day most likely.

Current medical student- seen about 30 of them done in the past