I seen my doctor still con fussed what to do

Thanks for your replys.The Dr. Is doing a Colonoscopy Nov.29. I don't know if he is still concerned like he should be.He said I dint need any extra prep.When I wasn't cleaned out when he did scope two months ago.I told him about my throat giving me problems.He said it may be my esophagus and he could stretch it.I really don't know what to do.I may talk to my Cancer Dr. About all this.I have a lot of pain in my stomach.I ask him about the area in Colon that wasn't cleaned out if we should be concerned.And he said no.He never told me this but I over heard him talking to the nurse because I was awake.It's so hard ton know what to do.I relize it could be my life if I don't get the right Dr.