So I've been on my feet more this week then I have been since I got pregnant. It's only because…

So I've been on my feet more this week then I have been since I got pregnant. It's only because someone isn't doing so well that I work with and well I trained her and now I'm back doing that job. My feet and knees hurt so badly not even half way through work. And even worse as the day goes on. Which I think is making me have headaches around 10:30-11pm.... And we also work 10 hours right now. That's 10 hours I'm on my feet all day long with 45 mins of sitting(break and lunch)..... I just would like to know how you guys would deal with this or help make it stop. Also with working 10 hours it's from 3:30pm to 2am 5 days a week and then between 5-10hours on Saturday......😭😭😭😭😭