Swelling feet and ankles!!

My feet and ankles having been swelling a lot more lately.. granted I have been on my feet more but they are REALLY swelling up! My husband tries to keep me off my feet (and keep them elevated) but it's so hard for me to sit still or stay comfy for so long 😩 I'm trying to keep salt and soda out of my diet and mostly just drinking water... any tips?!? I see my OBGYN in 2 days so I plan on mentioning it to her then too but any tips awhile would be greatly appreciated!