Since my section trimester I've had sore wrists that feel like arthritis. Doc says it's from swelling, and could be carpal tunnel if it doesn't go away after baby is born. (I'm 35 weeks 3 days)
I notice it's worse though on days where I'm dehydrated or have eaten too much salty stuff. Try to remember that swelling makes it worse! Good luck and I hope u feel better. I would mention it at your next appointment as well.