The tube in the nose down to the belly does it hurt??

I just found out after i wake up i will have a small plastic tube in my nose down to my belly for the first 48 hours..IM SCARED TO DEATH OF THIS TUBE!!! does it hurt? can i talk?? can i swallow?? will i keep gaging on it?? does it hurt when they pull it out?? is it hard to drink with it in?? will i even know it is in?? please i need some real answers if if its bad i need to get prepared.. thank you

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