I'm in my 2nd trimester and it hasn't subsided lol I have to wake up so frequently to go pee it's hilarious. So yes this is totally normal. I know this is an old post but I had to add to it being that I am going through the same thing. I am programmed now to close my legs every time I have to sneeze or cough. It is quite comical.
Same here I have to pee 2 to 3 times an hour. It drives me crazy. As your uterus continues to grow it will take some of the pressure off your bladder for the 2nd trimester, then in the 3rd it all comes back and you'll be peeing every 5 minutes ;-)