just like everyone has said, totally normal for you to see swelling in your feet in your third trimester. it's your hands and face that you'd need to worry about.
i'm not experiencing any swelling in my feet this time, normally they get huge at the end of my pregnancies ( but i'm usually delivering in a very hot month LOL). however, yesterday i had very swollen hands, and i think my eyes are puffy too. and it's very cold here. yesterday i couldn't even get my rings on. i ate pretty high protein yesterday and drank lots. today they still feel puffy, but my rings can go on and off without difficulty. i think my eyes are still puffy too. i'm just drinking lots of water and eatting high protein again. i'm due to be seen on wed so we'll see then if my BP is up. 33-34 weeks is when it usually goes through the roof.