I had this with my first, and it got worse the further along we were into the pregnancy. I think it has to do with the increased amount of blood your heart is pumping (not to mention the extra work due to weight gain, growing baby and everything else is going on in your bod!!) Also, carpal tunnel in pgcy is common due to swelling, which presses against your carpal nerve tunnel. For me, it was mostly my hands and arms. It went away shortly after DD was born. Maybe check with your caregiver to be sure it's nothing else, but sounds pretty normal to me.