Have you got pregnancy pillows and a memory foam mattress topper nojo? Might help a bit, I get the deadweight thing too. I've got really swollen hands and feet too and during the night if my hands get stuck in one position they get quite painful. And every time I need to roll over, SPD wakes me up. Then last night I was awake for two hours with earache! I have as many minor complaints as an 80 year-old.
Babydreaming, is it your growth scan today? Good luck!