Thanks for your response, its a good point. I just don't remember feeling the pain as much as I do now with my first bub. But it all makes sense, thankyou.
When I get up I do feel alot better, with the amount of toilet runs I do and water drinking its easily done ;)
My legs swelled up pretty early in my last pregnancy however saying that I wouldn't drink as much water. This time around I'm going good so far.
Just a thought but maybe it's round ligament pains you're feeling. The stretching and growing of your uterus causes it and I remember about 20 weeks that's when I started really showing so there must be lots of growth at that point. Awesome that you're feeling lots of kicks and stuff! Or maybe it's just the way baby is laying because of your sitting. I'd try and get up and walk around a lot too....you don't your legs or feet to swell up or get bad retention.