Everyone is so different. I worked part time past my due date. I felt ok and was on my feet. As you know my biggest problem was vomiting not the physical side such as swelling, sore back etc. I think if you are asking if you are doing too much you probably are.
I remember one day at 38 weeks wheeling the wheel barrow out and raking and shoveling horse poo from the paddock and I don't feel I could do that today lol!
Rest if your body feels like it needs rest. I think you have had lots of other stress lately with moving so maybe that's all been a bit too much.