Hey Natalie, I've had 2 Upper GI's! It's painless. The prep is easy, just clear liquids for a day. They spray your throat to numb it, & it goes NUMB! They put you out, & the next thing you know, you're waking up. It might take a bit for the anestia to wear off, & they may give you something to drink & tell you to eat something when you get home. Be carefull, eat something light, like toast. Other than that, you should be fine! Hope all goes well!! Keep us posted!