Peeing much more frequently at night?

Last night I went to dinner and a movie with a couple of friends from work. With my dinner I had one tall fruity drink, non-alcoholic, and that's it. I didn't even touch my glass of water. When we got to the movies, I went to the bathroom before it started, and yet had to go really bad again after it was over. When I got home I showered and did my usual nightly routine before bed, and peeing is part of it.

Well, last night, I woke up 5 times (every 2 hours or so) with a bladder so full it hurt. I have no idea why since I didn't drink anything since dinner, and that was around 8pm. What I drank then should've been emptied out the second time at the movie theatre.

This is the first time this has ever happened. Online it says I may have a UTI, but it doesn't hurt or burn to go to the bathroom; I just had to get rid of a lot of pee frequently? ha. Idk how to phrase that.

So, if anyone has any ideas, that'd be great. I do enjoy my sleep, and having to wake up every few hours (though I did reach REM sleep and was dreaming) is frustrating.