Yes, mention that to your doctor. It really could be that you are laying in an unnatural way like with your hand under your side or something. I put a pillow behind me so I didn't flip over on my back too. But mention the tingling hand to your care provider. good luck hon
this has been happening to me too, my OB said that some women get like carpal tunnel during pregnancy and that if I got the braces from the drugstore it may help.
I remember getting pins and needles in my hands with my first pregnancy. If your are swollen I would mention it to your doctor or midwives.